Answer:
6,368 chocolate
Step-by-step explanation:
First, we need to find the mass of chocolate chips in the bag:
Mass of Chocolate Chips=Mass of Chocolate Chips + Bag - Mass of Bag ONLY
Mass of Chocolate Chips = 2041 g - 67 g
Mass of Chocolate Chips = 1974 g
Next, we need to use the given information to estimate the number of chocolate chips in the bag:
31 grams of chocolate chips = 100 chips
1 gram of chocolate chips = 100/31 chips
Using this conversion factor, we can find the estimated number of chocolate chips in the bag:
1974 g of chocolate chips = (100/31) x 1974 chips
1974 g of chocolate chips ≈ 6,368 chips (rounded to four significant figures)
Therefore, it is estimated that there are about 6,368 chocolate chips in the bag.
A survey of 7th and 8th grade student who were asked whether or not they were in favor of or against school uniforms. This two-way table shows the results. How many 7th grade students are against school uniforms?
8. A person rode their bike 10 miles south going 15 mi/hr. How long did it take them?
9. An 8-kilogr
It takes the person 40 minutes to travel 10 miles at a rate of 15 miles per hour
How long did it take them?We can use the formula:
time = distance / speed
where "distance" is the distance traveled and "speed" is the speed at which the person is traveling.
In this case, the person rode their bike 10 miles south at a speed of 15 miles per hour.
Plugging these values into the formula, we get:
time = 10 miles / 15 miles per hour
Simplifying, we get:
time = 40 minutes
Therefore, it takes them 40 minutes
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A 46 gram sample of a substance that's a by product of fireworks has a k-value of 0.1394.
Find the substance's half-life in days. Round your answer to the nearest tenth.
The substance's half-life in days is 5 days.
What is exponential decay?
If a quantity declines at a pace proportionate to its current value, exponential decay may be present. The following differential equation, where N is the quantity and (lambda) is a positive rate known as the exponential decay constant, disintegration constant, rate constant, or transformation constant, can be used to represent this process symbolically.
Here, we have
Given: A 46-gram sample of a substance that's a by-product of fireworks has a k-value of 0.1394.
We have to find the substance's half-life in days.
Using the formula for the exponential decay that is N = N₀e⁻ⁿˣ,
we have N = 46/2, N₀ = 46, and n = 0.1374.
N = N₀e⁻ⁿˣ
23 = 46e⁻⁰°¹³⁹⁴ˣ
23/46 = e⁻⁰°¹³⁹⁴ˣ
1/2 = e⁻⁰°¹³⁹⁴ˣ
Taking logs on both sides, we get
㏑(1/2) = -0.1394x
x = ㏑(1/2)/(-0.1394)
x = -0.6931/(-0.1394)
x = 4.9720
Hence, the substance's half-life in days is 5 days.
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I need help with this question pls
The problem steps should be put in the correct order as follows;
Problem ≡ [tex]\frac{2}{x+1} \cdot \frac{3}{x-2}[/tex]
Multiply numerators and multiply denominators ≡ [tex]\frac{2 \cdot 3}{(x+1)(x-2)}[/tex]
Simplify numerator and Simplify denominator ≡ [tex]\frac{6}{(x^2 - x - 2)}[/tex]
What is a fraction?In Mathematics and Geometry, a fraction simply refers to a numerical quantity (numeral) which is not expressed as a whole number. This ultimately implies that, a fraction is simply a part of a whole number.
What is a rational expression?In Mathematics and Geometry, a rational expression simply refers to a type of expression which is expressed as a fraction. In this exercise, we would factorize the numerator and denominator for this rational expression as follows;
Multiply numerators = 2 × 3 = 6
Multiply denominators = (x + 1) × (x - 2) = x² - 2x + x - 2 = x² - x - 2
In conclusion, the required rational expression is given by [tex]\frac{6}{(x^2 - x - 2)}[/tex]
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what other patterns can you discover in the subway ridership dataset using calculations with multiple operators?
Subway ridership data can reveal useful patterns through calculations with multiple operators, informing decisions about infrastructure and scheduling to better serve riders' needs.
Why Subway ridership data reveal useful patterns through calculations?The subway ridership dataset can reveal a wealth of information through calculations with multiple operators. One such calculation is the average increase or decrease in ridership during specific time intervals. By comparing ridership during peak and off-peak hours or weekdays versus weekends, it is possible to determine when the subway system is busiest and when it is underutilized.
Another useful calculation is the average percentage change in ridership between different stations or subway lines. This can help identify the most popular stations or lines and can inform decisions about where to allocate resources and infrastructure improvements.
Additionally, it is possible to explore the correlation between ridership and other factors such as weather, events, or holidays. By analyzing how ridership fluctuates in response to external factors, transportation planners can adjust schedules and routes to better serve the needs of riders.
Calculations with multiple operators can also reveal patterns in ridership based on time of year or day of the week. By analyzing the average change in ridership on different days or months, transportation planners can make informed decisions about scheduling and staffing.
Finally, regression analysis can be used to identify the overall trend in ridership over time. By examining long-term ridership trends, transportation planners can identify areas for improvement and plan for future infrastructure projects to better meet the needs of subway riders.
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pls help i need to show my work fir these problems
ok so for the first one I'm im taking a guess I think it's the first one.
the second one plot the point on the line between 14 and 15
I think those should be correct I think
Handling Exponents:
Generally when handling exponents it is necessary to follow the different Law of Exponents
1. Product rule
when multiplying exponents with the same base the exponents are added2. Quotient rule
when dividing exponents with the same base the exponents are subtracted3. Power to Power rule
when raising an exponent to another exponent you must multiply them4. Negative exponent rule
when an exponent is raised to a negative power the base is moved to the denominator and the sign of the exponent changes5. Zero power rule
any number raised to the power of 0 = 1In this context we are finding what is equivalent to 6^8 x 6^(-4)
using the product rule, the base is 6 in both cases so we add the exponents: 8 + (-4) = 4now we find what is equivalent to 6^4[tex]6^(8-4)=6^4[/tex] - this is equivalent
[tex](6^8)^-4=6^-^3^2[/tex] - not equivalent
[tex]6^2[/tex] - not equivalent
[tex]6^-^2=\frac{1}{6^2}[/tex] - not equivalent
[tex]6^-^3^2=\frac{1}{6^3^2}[/tex] - not equivalent
[tex]\frac{6^8}{6^4}= 6^(^8^-^4^)=6^4[/tex] - this is equivalent
The first and last options are equivalent to 6^8 x 6^(-4)
explain why we call the national halothane study an observational study rather than an experiment, even though it compared the results of using different anesthetics in actual surgery.in order to be an experiment, the subjects would have to be randomly selected from the population. however, these are hospital patients who all have some disease or condition and have not been randomly selected from the population, which includes both healthy and sick people.in order to be an experiment, the treatments (choice of anesthetic) would have to be randomly assigned. instead, a patient's anesthetic is selected by his or her doctor(s).there is not enough information to say for sure, but it is safer to assume that it is only an observational study, so that we are not overconfident about the results.actually, it is an experiment and not an observational study.
We the best reason behind why we call National halothane study is an observational study rather than an experiment is: " In order to be an experiment, the treatments (choice of anesthetic) would have to be randomly assigned." So, option( b) is right one.
We have data from the National Halothane Study that correlates with important research into the safety of anesthetics used in surgery. The above shows the death rate and aesthetic. There is a relationship between the anesthetic used and the death of the patient. The data was collected after that the anesthesia was administered is started. In the observational study, interesting observer in the subjects & any treatment that the subjects recive are beyond the council of the investigators. Here the motion of anaesthesia is anesthetics used her determined by the doctors and the investigators are simply observing. So, it is an observational study due to because in order to be an experiment, the treatments (choice of anesthetic) would have to be randomly assigned. Instead, a patient's anesthetic is selected by his or her doctor(s).
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Complete question:
The National Halothane Study was a major investigation of the safety of anesthetics used in surgery. Records of over 850,000 operations performed in 34 major hospitals showed the following death rates for four common anesthetics:27 Anesthetic A Death rate B CD 1.7% 1.7% 3.4% 1.9% There is a clear association between the anesthetic used and the death rate of patients. Anesthetic C appears dangerous.
a) in order to be an experiment, the subjects would have to be randomly selected from the population. however, these are hospital patients who all have some disease or condition and have not been randomly selected from the population, which includes both healthy and sick people.
b) in order to be an experiment, the treatments (choice of anesthetic) would have to be randomly assigned. instead, a patient's anesthetic is selected by his or her doctor(s).
c) there is not enough information to say for sure, but it is safer to assume that it is only an observational study, so that we are not overconfident about the results.
d) actually, it is an experiment and not an observational study.
Knoebels Amusement Park in Elysburg, Pennsylvania, has earned acclaim for
being an affordable, family-friendly entertainment venue. Knoebels does not
charge for general admission or parking, but it does charge customers for each
ride they take. How much do the rides cost at Knoebels? The figure shows a dot-
plot of the cost for each of 22 rides in a recent year, along with summary
statistics.
0000
00000000
000000
1. 4
1. 6
1. 8
2
2. 4
212
Cost (5)
2. 6
2. 8
s
Based on the dot plot, the cost for each of the 22 rides is between $1 and $12.
The summary statistics show that the minimum cost is $1, the maximum cost is $12, the median cost is $3.60, and the interquartile range (IQR) is $2.30 ($2.90 - $0.60).
Knoebels Amusement Park in Elysburg, Pennsylvania is an affordable and family-friendly entertainment venue that does not charge for general admission or parking. Instead, customers are charged for each ride they take.
From the dot-plot and summary statistics provided, we can see that the cost for each ride varies, with the cheapest ride costing $2 and the most expensive costing $12. The average cost of a ride is $6.32, and the standard deviation is $2.43, indicating that there is some variability in the cost of rides.
Overall, Knoebels Amusement Park appears to be a reasonably priced entertainment option, with a range of ride options available at varying costs to suit different budgets.
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-- The figure is missing in the given question, attached below --
Find a in degrees 5 a 9 4
Answer:
a=37° to the nearest whole number
Step-by-step explanation:
cos0=adj/hyp
cosa=4/5
a=cos‐¹(4/5)
a=36.869°
a=37° to the nearest whole number
The question is on the screenshot! ^^
Answer:
09165574045I want 2 use dis medium 2 thk y’all 4 being part of my 2022.
As a frnd I say a Big Thk u
As a customer I say a Big Thk u
As a partner I say a Big Thk u
As a family member I say a Big Thk u
As my god ordained helper I say a Big Thk u!
God bless u n see y’aappothdojhdotopogohdoogknroogbdjojej3337858ll in 2023 in Grand Style. Amen
Study this Frequency Distribution Table (FDT) to answer the question below.
CL fi xi fixi
10 – 15 8 12.5 100 8 9.5 – 15.5
16 – 21 10 18.5 185 18 15.5 – 21.5
22 – 27 8 24.5 196 26 21.5 – 27.5
28 – 33 4 30.5 122 30 27.7 – 33.5
n = 30 ∑ =603
n/2 = 30/2 = 15 i = 6
What is the Mode ?
(Use up to one decimal place in writing your answer).
The mode is 18.5.
What is mode?
In statistics, there are most repeated value among the given set of data. Those are called mode. Among the given set of data, mode is the value which has the maximum frequency. Sometimes, it may be possible to have more than one value which has the equal maximum frequency.
Formula for mode for grouped data is given by:
Mode = l + [(f₁-f₀)/(2f₁-f₀-f₂)]×h.-------------------(1)
Where, l = lower class limit of modal class, h = class size, f₁ = frequency of modal class, f₀ = frequency of class preceding to modal class, f₂ = frequency of class succeeding to modal class.
In the given problem l= 15.5
f₀= 8
f₁= 10
f₂= 8
h= 6
Putting all the values in equation (1) we obtain mode
mode= 15.5 +{(10-8)/(2×10-8-8)} ×6
= 15.5+(2/4)×6
= 15.5+ 3
= 18.5
Hence, the mode is 18.5.
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A coordinate plane. The x- and y-axes each scale by one. A graph of a line intersects the points negative four, negative three and negative one, negative two. A coordinate plane. The x- and y-axes each scale by one. A graph of a line intersects the points negative four, negative three and negative one, negative two. What is the slope of the line?
The slope of the line on this graph is equal to 1/3.
How to calculate or determine the slope of a line?In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;
Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)
Slope (m) = rise/run
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
By substituting the given data points into the slope formula, we have the following;
Slope (m) = (-2 - (-3))/(-1 - (-4))
Slope (m) = (-2 + 3)/(-1 + 4)
Slope (m) = 1/3
Based on the graph, the slope is the change in y-axis with respect to the x-axis and it is equal to 1/3.
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The slope of the coordinate line is 1/3.
Coordinate plane calculation.
To find the slope of the line that passes through the points (-4, -3) and (-1, -2), we use the slope formula:
slope = (change in y) / (change in x)
The change in y is -2 - (-3) = 1, and the change in x is -1 - (-4) = 3. Therefore, the slope is:
slope = 1 / 3
So the slope of the line is 1/3.
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a rotating light is located 12 feet from a wall. the light completes one rotation every 2 seconds. find the rate at which the light projected onto the wall is moving along the wall when the light's angle is 20 degrees from perpendicular to the wall.
The rate at which the light's projection moves along the wall when the light's angle is 20 degrees from perpendicular to the wall is approximately 1.078 feet per second.
Let's let t be the time elapsed since the light started rotating, and θ be the angle that the light makes with the perpendicular to the wall, as shown in the diagram. The rate at which the light's projection moves along the wall is given by the derivative of the horizontal distance between the projection point P and the foot of perpendicular Q, with respect to time t. Let's call this distance x.
From the diagram, we can see that:
tan(θ) = x / 12
Differentiating both sides with respect to time t, we get:
sec²(θ) dθ/dt = (dx/dt) / 12
We are given that the light completes one rotation every 2 seconds, which means that the angular velocity of the light is:
dθ/dt = 2π / (2 seconds) = π radians per second
Substituting this value and θ = 20° (converted to radians), we get:
sec²(20°) (π rad/sec) = (dx/dt) / 12
Simplifying:
(1/cos²(20°)) (π/2) = (dx/dt) / 12
Multiplying both sides by 12 and evaluating the left-hand side, we get:
dx/dt = 1.078 feet per second
As a result, when the light's angle is 20 degrees from perpendicular to the wall, the pace at which the projection advances along the wall is roughly 1.078 feet per second.
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A small tree that is 8 feet tall casts a 4-foot shadow, while a building that is 24 feet tall casts a shadow in the same direction. Determine the length of the building's shadow.
6 feet
12 feet
18 feet
48 feet
Answer:
Using similar triangles, we can set up a proportion:
(tree height)/(tree shadow) = (building height)/(building shadow)
Plugging in the given values, we get:
8/4 = 24/x
Solving for x, we get:
x = (24 x 4)/8 = 12 feet
Therefore, the length of the building's shadow is B. 12 feet.
in a two-way anova test, if the effect of one variable depends on the value of another variable, then there is: group of answer choices interaction correlation multi colinearity
It is important to test for interactions in a two-way ANOVA to ensure that the main effects of each variable are not being confounded by the presence of an interaction.
In a two-way ANOVA test, if the effect of one variable depends on the value of another variable, then there is an interaction between the two variables. An interaction occurs when the effect of one independent variable on the dependent variable changes depending on the level of the other independent variable. It is important to test for interactions in a two-way ANOVA to ensure that the main effects of each variable are not being confounded by the presence of an interaction.
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In a two-way ANOVA test, if the effect of one variable depends on the value of another variable, "interaction".
In a two-way ANOVA test, interaction occurs when the effect of one independent variable on the dependent variable
depends on the level of another independent variable.
This means that the effect of one variable is not constant across all levels of the other variable, and it is important to
consider this interaction effect in interpreting the results of the ANOVA test.
Correlation and multicollinearity are not directly related to ANOVA tests, while "group of answer choices" is not a
relevant term in this context.
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Please help!! URGENT!! I don’t understand
Answer: 14%
Step-by-step explanation:
Our formula is i=prt but we're trying to find the rate (r) so we'll rearrange it to become r=i/pt.
i = $245
p = $7000
t = 3/12= 0.25 years
[tex]r=\frac{245}{(7000)(0.25)} \\r = 0.14[/tex]
Select the correct answer from each drop-down menu. Consider function f, where B is a real number. Complete the statement describing the transformations to function f as the value of B is changed. As the value of B increases, the period of the function , and the frequency of the function . When the value of B is negative, the graph of the function .
The answer through which all the value of the given relation satisfied the relation is period decreases, frequency increases and reflected in y - axis.
What about frequency?
In mathematics, frequency is a term used in statistics to describe how often a particular value or set of values appears in a dataset. Specifically, frequency refers to the number of times a particular data point or value occurs in a dataset.
For example, consider a dataset of test scores for a class of students. The frequency of a particular score (e.g., 80%) would be the number of students who received that score. The frequencies can be used to create a frequency distribution, which is a table that shows the frequency of each value or group of values in a dataset.
According to the given information:
In the given condition as the value of B increases, the periodic function decreases and the frequency of the function increases where as, when the value of B is negative, the graph of the function reflected in y-axis.
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Solve the Simple Interest
Ruby contributes 12% of the total cost of her individual health care. This is a $57.50 deduction from each of her biweekly paychecks. What is the total value of her individual coverage for the year? Find its employer share.
Using simple interest we know the Total value of annual health coverage is $9000.
What is simple interest?Borrowers must pay lenders simple interest as a fee in exchange for a loan.
Compound interest is excluded from the calculation and just the original principal is used.
Simple interest applies to all loans, not just specific ones.
Additionally, it refers to the kind of interest that banks give their customers on their savings accounts.
So, complete yearly health coverage calculation
Let x be the total annual healthcare budget.
Ruth contributes 18% of the entire cost of healthcare, or $67.50 for two weeks. (ie 15 days)
So, total paid for one month = 67.5 x 2 = 135
The total amount paid for the entire year is 135 x 12 = 1620.
She foots 18% of the overall annual health care costs, as was already established.
Then,
18% x = 1620
18 x / 100 = 1620
x = (1620 x 100) / 18
= $9000
Therefore, using simple interest we know the Total value of annual health coverage is $9000.
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Correct question:
Ruth contributes 18% of the total cost of her individual health care. This is a $67.50 deduction from each of her biweekly paychecks. What is the total value of her individual coverage for the year?
Question 6
A train traveled 250 kilometers (km) from its starting point in 5 hours (h). If the train continues at the same average speed for another 4 hours, how
far will it have traveled from its starting point?
A) 200 km
O B) 250 km
O C) 450 km
OD) 500 km
The train will have traveled option (C) 450 km from its starting point after 4 more hours at the same average speed.
The average speed of the train is given by the distance traveled divided by the time taken to travel that distance
average speed = distance ÷ time
Using this formula, we can find the average speed of the train:
average speed = 250 km ÷ 5 h = 50 km/h
Now that we know the average speed of the train, we can use it to calculate how far it will have traveled after another 4 hours:
distance = average speed × time
distance = 50 km/h × 4 h = 200 km
Therefore, the train will have traveled 250 km + 200 km = 450 km from its starting point after 4 more hours at the same average speed.
So, the answer is (C) 450 km.
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Jordan is looking for a new place to live. She saw an ad in the paper and went to the apartment building to look at the available unit. There, she met Steve, the person who manages the property. Steve's jobs include collecting rent, making small repairs, and screening the people who answers the ads. The rent checks are to be made to Dave, the owner of the building. Jordan loves the apartment and is approved to sign the lease and move in.
In this scenario, Jordan is the:
Tenant
Real estate agent
Property manager
Landlord
two fair 6-sided dice are rolled. what is the probability that the sum of the two numbers on the dice is greater than 10?
The probability of rolling a sum greater than 10 is 4/36, which simplifies to 1/9, or approximately 0.1111.
There are 36 possible outcomes when rolling two 6-sided dice. Each outcome is equally likely.
To find the probability of rolling a sum greater than 10, we need to count the number of outcomes where the sum is greater than 10, and then divide by the total number of outcomes.
The outcomes where the sum is greater than 10 are:
4 + 6 = 10
5 + 6 = 11
6 + 5 = 11
6 + 6 = 12
So there are 4 possible outcomes where the sum is greater than 10.
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Please help offering 15 points!!
Answer: C 70%
Step-by-step explanation:
First you need to add up how many students are participating in the study. 4+6+12+8+4=34. There are 24 people who own more than 5 video games. This means that it is 24/34. This equals about 70%
please help with these assap will give brainlest!!
Answer:
below
Step-by-step explanation:
58.
(72 + 75 + 68 + 70 + 73 + 72 + 76 + 72 + 69 + 72 ) divided by 10 = 71.9
59.
order- 68, 69, 70, 72 , 72, 72, 72, 73, 75, 76
median = (72 + 72) divided by 2 = 72
61.
I dont know what MAD means
this is all I could do rn
What is the minimum of the graph described by y= (x - 2)2 - 3
Answer:
(2,-3) is the minimum
Step-by-step explanation:
y = (x-2)²-3 is a quadratic equation written in 'vertex' form: y = (x-h)²+k where 'h' and 'k' represent the vertex
The vertex is the highest or lowest point of the curve, in this case the 'minimum' so (2,-3) is the minimum
‼️WILL MARK BRAINLIEST‼️
As a result, Alex should use a circle graph to display his data set because it can effectively convey to his manager the percentage of each flower kind that was planted.
Why is a circle graph the best choice for the given data?To visualise information and data, use a circle graph or pie chart. Typically, a circle graph is used to quickly and proportionately display the findings of an investigation.
What kind of graph does a circle represent in terms of data?A pie chart, often known as a circle chart, is a visual representation of the various values of a given variable or a means to summarise a set of nominal data. This kind of diagram consists of a circle with numerous segments.
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A right triangle has side lengths of 4 centimeters and 5 centimeters. What is the length of the hypotenuse?
Answer:
[tex] \sqrt{41} [/tex]
Step-by-step explanation:
for finding the hypotenuse we use the pythagoras theorem
For each equation,draw a tape diagram and find the unknown vale a.x+9=16 b.4•x=28
The tape diagram for the equation can be given using rectangular boxes. The unknown value of x is a. 7, b. 7.
What is a tape diagram?A tape diagram, often referred to as a strip diagram, is a visual representational tool in mathematics used to compare or illustrate numerical relationships. It consists of a rectangle or a segment of a line that has been divided into equal portions, each of which represents a specific amount. The magnitude of the quantity being measured is indicated by the length or area of the parts.
In order to help students understand the information offered and to visualise the relationships between the values involved, tape diagrams are frequently utilised in problem-solving scenarios.
Given that,
a.x+9=16
x = 16 - 9
x = 7
b.4•x=28
x = 7
Hence, the unknown value of x is a. 7, b. 7.
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thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 137 millimeters, and a variance of 49 . if a random sample of 48 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 3 millimeters? round your answer to four decimal places.
The probability that the sample mean would differ from the population mean by greater than 3 millimetres is 0.0033 + 0.0033 = 0.0066, rounded to four decimal places.
We are given that the population mean diameter of the steel bolts manufactured by Thompson and Thompson is μ = 137 millimeters and the variance is = 49.
We need to find the probability that the sample mean would differ from the population mean by greater than 3 millimeters.
The standard deviation of the sample means is given by the formula:
[tex]\sigma_{\bar{x}} = \frac{\sigma}{{\sqrt{n}}}[/tex]
Substituting the given values, we have:
[tex]\sigma \bar{x}=\frac{\sqrt{49}}{\sqrt{48}}=1.118[/tex]
To find the probability that the sample mean would differ from the population mean by greater than 3 millimeters,
we need to calculate the z-score:
[tex]z=\frac{(\bar{x}-\mu)}{ \sigma _{\bar{x}}}[/tex]
Substituting the given values, we have:
[tex]z=\frac{\bar{x}-137}{1.118}[/tex]
We want to find the probability that |z| > 3/1.118 = 2.683.
Using a standard normal distribution table, we find that the probability of z > 2.683 is 0.0033.
Since this is a two-tailed test, the probability of z < -2.683 is also 0.0033.
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true or false: at the initial examination in the framingham study, coronary heart disease was found in 5 per 1000 men ages 30-44, and in 5 per 1000 women ages 30-44. the inference that in this age group men and women have an equal risk of getting coronary heart disease is incorrect because the data are prevalence data and not incidence data. group of answer choices true false
The inference is that, Incorrect because of a failure to distinguish between incidence and prevalence.
What is inference drawn from statistics?
Utilising data analysis to determine characteristics of a probability distribution at play, statistical inference is the process. Through the use of estimation and hypothesis testing, inferential statistical analysis infers characteristics of a population. It is presumed that a bigger population than the observed data set was sampled for this data collection.
What distinguishes random assignment from random sampling inferences?
As a method of choosing participants for your study's sample, random selection or random sampling can be used. The sample can be divided into control and experimental groups using random assignment, however.
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The complete question is -
At the initial examination in the Framingham study, coronary heart disease was found in 5 per 1,000 men aged 30yrs to 44yrs and in 5 per 1,000 women aged 30yrs to 44yrs. The inference that in this age group men and women have an equal risk of developing coronary heart disease is Selected Answer: A. Correct Answers: A. Correct B. Incorrect because of a failure to distinguish between incidence and prevalence C. Incorrect because a proportionate ratio is used when a rate is required to support the inference D. Incorrect because of failure to recognize a possible cohort phenomenon E. Incorrect because there is no control or comparison group.
Please someone help me I don't understand this at all
The proof of the above parallelogram is given as follows.
What is the proof that shows that AB ≅ CD and BC ≅ DA?Statement Reason
ABCD is a parallelogram. GivenDraw AC (See Attached) Unique Line postulate∠DCA and ∠BCA are alt. Interior angles Def. of Alt. Int. AnglesAB ║ CD Def. of parallelogramBC ║DA Def. of parallelogram∠BCA and ∠DAC are alt. int. angles Def. of Alt. Int. Angles∠BCA ≅ DAC Alt. Int. Angles theorem∠DCA ≅ ∠BAC Alt. Int. Angles theoremAC ≅ AC Reflexive propertyΔABC ≅CDA ASAAB ≅ CD CPCTCBC ≅ DA CPCTCLearn more about Parallelograms:
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