What raw score best corresponds to the top 20% for each distribution?
What raw score best corresponds to the 30th percentile for each distribution?
Major Hours ZHours
1 15 -1.59248
1 24 .42616
1 25 .65045
1 18 -.91960
1 30 1.77192
1 18 -.91960
1 22 -.02243
1 23 .20186
1 26 .87474
1 20 -.47102
2 21 1.95475
2 12 -.71082
2 13 -.41464
2 10 -1.30317
2 17 .77005
2 12 -.71082
2 12 -.71082
2 20 1.65858
2 12 -.71082
2 12 -.71082
2 15 .17770
2 12 -.71082
2 15 .17770
2 14 -.11847
2 19 1.36240

Answers

Answer 1

The raw score from the given table that corresponds with the 20th and 30th percentiles are;

First distribution;

20th percentile; 1830th percentile; 22

Second distribution;

20th percentile; 1230th percentile; 14

How can percentile values be found from Z–Score?

The Z–Score percentile normal distribution table can be used to find the Z–Score that gives the percentile value of a raw score.

The Z–Score, also known as the standard score, gives the number of standard deviations, a raw score is far from the mean.

The mathematical equation for the Z–Score is as following; [tex]Z = \frac{x - \mu}{ \sigma} [/tex]

Therefore, a positive value of Z is obtained when the raw score, x, is larger than the mean, [tex] \mu[/tex]

and negative Z value is given by raw scores lower than the mean.

Using the standard normal distribution table, raw score corresponds to the 1th percentile when the Z–Score = -2.326, while the Z–Score for the 99th percentile is 2.326.

The Z–Score of the 20th percentile is -0.842, while for the 30th percentile it is -0.524

Comparing the standard values with the values in the given table, we have;

First distribution;

The raw score that corresponds with the 20th percentile in the first distribution is 18, given that the Z-Hours for 18 is -0.91960, and we have;

-0.91960-(-0.842) = -0.0776

-0.71082 -(-0.842) = 0.13118

The smaller difference is given by -0.91960.

Similarly;

The raw score that corresponds to the 30th percentile is 22.

Second distribution;

The raw score that corresponds with the 20th percentile in the second distribution is 12

While;

The raw score that corresponds to the 30th percentile is 14

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Related Questions

After the first rounds of a card game, a persons score is 0 points. The persons score decreased 70 points during their second round. What was the persons score after the first round of the game?

Answers

Answer: Its C I just took the test

Step-by-step explanation:

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Determine if the expression 5a²b is a polynomial or not. If it is a polynomial, state
the type and degree of the polynomial.

Answers

Yes, it is a polynomial

The degree of the polynomial is 2

and it is a Quadratic polynomial

A polynomial is a mathematical expression that solely uses the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. It is made up of indeterminates (also known as variables) and coefficients.[tex]x^{2}[/tex]− 4x + 7. is an illustration of a polynomial with a single indeterminate x. Three-variable example: [tex]x^{3}[/tex]+ 2xy[tex]z^{2}[/tex] − yz + 1..

Numerous branches of mathematics and science use polynomials. For instance, they are used to define polynomial functions, which show up in contexts ranging from basic chemistry and physics to economics and social science, and they are used in calculus and numerical analysis to approximate other functions. Polynomial equations are used to encode a wide range of problems, from simple word problems to complex scientific problems.

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i’ll give you brainlist please help

Answers

Answer:

Option C.

Step-by-step explanation:

It literally shows u how to do it on the chart step by step just add subract then divide lol.

Add 7 x 10−6 and 2.1 x 10−5

Answers

Answer:

Step-by-step explanation:

70-6+21-5

64+16

=80

Martín y Paulina realizan una inversión en acciones con la misma cantidad de dinero. Martín ganó
$ 8.000 y Paulina perdió $ 6.000; de tal manera que la cantidad que le quedó a Paulina es la tercera
parte de lo que le quedó a Martín.
Determine una expresión algebraica que represente la situación planteada.

Answers

i said right foot creep owww walking with that heat walk walking around stay low make sure that don't see

A

what fraction equals . 45?

Answers

Answer:

9/20

Step-by-step explanation:

0.45 is really 45/100 if you simplify it can only simplify to 9/20 because 9 and 20 don't have a common denominator that will end in two whole numbers

Find the standard form of the equation of the circle with endpoints of a diameter at the points
(3, 6) and (-11, 8).

Answers

Answer:

Hello,
Answer: (x+4)²+(y-7)²=50

Step-by-step explanation:

center=((3+(-11) )/2,(8+6)/2)=(-4,7)

radius²=(3-(-4))²+(6-7)²=49+1=50

Equation:

(x+4)²+(y-7)²=50

help ASAP don't answer just for points, and have an explanation okay? e.x: writing the math out

Answers

Answer:

Josh spent $29.87

Step-by-step explanation:

$12.99 + 3.75×4.5 = $29.865 ≈ $29.87

Answer:

Okay, so what you first want to do is is find out what 3.75 times 4 1/2 is. First you can start by transitioning 4 1/2 into decimal form like so:

4.5

And then multiply 3.75 times 4.5

3.75*4.5=16.87

Then add you quotient to the amount of money that he paid for the flat rate:

12.9916.87 + 12.99 = 26.86

Answer = $26.86

Step-by-step explanation:

Evaluate the expression when y =5 and x = 7

4y + x

Answers

The answer to the question that you are asking is 27

Answer:

i believe it is 27.

Step-by-step explanation:

since y = 5 and x = 7, what you would do is 5×4+7. which equals 27

Consider the two functions.
f(x) = 4 +6
g(x) = 4²-6
If g (x) = f(x) + k
what is the value of k?

Answers

K=-12
Check out the attached photo

*
A company has learned that by pricing a newly released toy at $7, sales will reach 1500 per day. Raising the price to $9 will cause the sales to fall to 1000 per day. Assume that the
ratio of change in price to change in daily sales is constant and let x be the price of the toy and y be the number of sales
a. Find the linear equation that models the price-sales relationship for this toy. (Hint: The line must pass through (7,1500) and (9,1000)]
b. Use this equation to predict the daily sales of the toy if the price is set at $8.50
a. Find the linear equation that models the price-sales relationship for this toy
(Simplify your answer)
b. Predict the daily sales of the toy if the price is set at $8.50.
toys

Answers

(a)  The linear equation that models the price-sales relationship for this toy is  y = -250 x + 3250 .

(b)  The daily sales of the toy if the price is set at $8.50 will be $1125

Slope for two points is given by m = y₂ -y₁ / x₂ - x₁ where ( x₁, y₁) are the coordinate of first point and (x₂, y₂) are the coordinate of second point.The most common variety of linear equations is in slope-intercept kind, that is pictured as y = mx + b where, m is that the slope of the road, b is that the y-intercept , x and y are the coordinates .An equation may be a statement, that has AN equal sign (=) between the pure mathematics expression. Linear equations are the equations of degree one.

(a) Let "x " be the price of the toy and "y"  be the number of sales.

Then equation is given by y = mx + c         .......(1)

It is given that ($7, 1500 sales/day) and ($9,1000 sales/day).

Using slope formula , for these two points , we get

         m = 1000 - 1500 / 9 -7

             = -500 / 2

             = -250

Putting x = 7 and y = 1500  and m = -250 in equation (1) , we get

               1500 = (-250)(7) + c

               1500 = - 1750 +c

                 c = 3250

Putting c = 3250 and m = -250 in equation (1) , we get

  y = -250 x + 3250      ........(2)

(b) Put x = 8.50  in equation (2) , we get

     y = -250(8.50) + 3250

       = -2125 + 3250

      = $ 1125

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In order to solve the equation −3x + 6 = 5, the first step is to

Answers

Subtract 6 from its self making it 0
And subtract 6 from the 5 on the right making it now -1

the equation is now -3x = -1

What is the product?

Answers

Answer:

yo mom

Step-by-step explanation:

9
00
Click and drag to plot a parallel line.
The line will change colors when a parallel
or perpendicular line is drawn accurately.

10
-5
4
32
-2
-1
10
8
50
32
2
-1
13
32
-4
10
9
7 00
6
-10
10
co
4
5
6
7
8
9
10

Answers

.snsjsjs jajsksks hejsjsjss newks neen Nelson’s ken

HELP PLSSS


THE CORDINATE OF POINT T ARE (2,-14). The midpoint of segment ST is (2,-8). Find the coordinates of point s

Answers

Answer: f xc

Step-by-step explanation:

fff  eeffffff

6. You and 4 friends purchased ice cream sodas. Tickets cost
$6.85 each. What would be the total cost? How much
change would you receive from $40?

Answers

Answer:

total = $27.40, change = $12.60

Step-by-step explanation:

6.85 x 4  = 27.40

40.00 - 27.40 = 12.60

FIND THE ERROR Grant read the following axioms for a video game he is playing.
. There are four keys hidden on each level.
Each level ends when the player collects the third key.
.
• The game has 10 levels.
.
From these axioms, Grant concluded:
• to complete the game, he will need to find 30 keys.
.
. there are 40 keys in the game.
• he can collect all 40 keys in the game.
Are Grant's conclusions correct? Explain your reasoning.

Answers

Step-by-step explanation:

hhiejrhrhrrhhrrhrjif

Points A, B, C, and D are collinear and positioned in that order. Find the length indicated.
AC=149, BD= 3x+307, BC= 6x+443, AD= 8x + 717. Find BC

Answers

If A, B, C, and D are collinear points then the length of BC = 6x +443 is 59.

What are collinear points?

A group of three or more points that are located along the same straight line is called collinear points. On separate planes, collinear points may exist, but not on different lines. Collinearity is the quality of two points being parallel to one another. Any three or more points are only considered to be collinear if they are situated along the same straight line. There is only one line that can pass through three locations that are collinear.

Given that A, B, C, and D are collinear points and position in that order.

AC = 149

BD = 3x + 307

BC = 6x + 443

AD = 8x + 717

We can determine the length of AB

AB + BD = AD

AB + 3x + 307 = 8x + 717

AB = 8x - 3x + 717 - 307

AB = 5x + 410

Now, we know that

AB + BC = AC

5x + 410 + 6x + 443 = 149

11x + 853 = 149

11x = -704

x = - 64

Put x= -64 in BC

BC = 6(-64) + 443

BC = - 384 + 443

BC = 59

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The air temperature at 9am is -5.8 degrees Celsius the air temperature at noon is -1.6 degrees Celsius what change in the temperature during these three hours?

Answers

The change in the temperature during these three hours will be -4.2° Celcius.

How to calculate the value?

From the information, the air temperature at 9am is -5.8 degrees Celsius and the air temperature at noon is -1.6 degree.

Therefore, the change in the temperature during these three hours will be:

= -5.8 - (-1.6)

= -5.8 + 1.6

= -4.2° Celcius

Therefore, the change in the temperature during these three hours will be -4.2° Celcius.

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1. For any integer x, x²-x will always produce an even value. True or false?

Answers

For any integer x, x²-x will always produce an even value is TRUE in all sense.

As per the question statement, we are given an expression [tex]x^{2} -x[/tex] and asked about the validation of the statement, "For any integer [tex]x[/tex],  [tex]x^{2} -x[/tex] will always produce an even value.

Lets first take a positive value say [tex]x=3[/tex], which is an integer also

[tex]x^{2} -x\\=3^{2} -3\\=9-3\\=6[/tex]

which is an even number.

Now lets take a negative value say [tex]x=-7[/tex],  which is an integer also

[tex]x^{2} -x\\=7^{2} -7\\=49-7\\=42[/tex]

which is an even number also.

Hence the statement "For any integer x, x²-x will always produce an even value" is TRUE in all sense.

Integer: Set of whole numbers that can be positive, negative and zero as well.Even number: Any number divisible by number 2 is an even number e.g., 2, 4, 6, 8, 0

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The Sports Brand Company is making a new shoe that has a wholesale price of $60,
and it wishes to advertise a retail price of $150. What is the markup percentage?
Give answer to nearest whole percent.

Answers

The mark up percent on the retail price is 150%.

How to calculate the percentage?

Since the Sports Brand Company is making a new shoe that has a wholesale price of $60,

and it wishes to advertise a retail price of $150,the markup will be:

= $150 - $60

= $90

Therefore the markup percentage will be:

= Mark up/ Original price × 100

= 90/60 × 100

= 3/2 × 100

= 150%

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The function f is given below. Find f-¹(z) and evaluate f-¹(-6).

Answers

Answer:

find the formula of the inverse function of a given function. For example, find the inverse of f(x)=3x+2.

Step-by-step explanation:

2 10 points
Sutton's cellphone plan calculates her bill by using the function, b (z) = 0.05x+75, where x is the number of minutes she uses the phone. What is her bill if she uses her
phone for 10000 minutes?

Answers

If she uses its phone for 10000 minutes, her cost will be $575.

What is linear equation:

The typical form for two-variable linear equations is Ax+By=C. For example, 2x+3y=5 is a common linear equation. It is rather simple to find both intercepts when an equation is stated in this way (x and y).

According to the given data:

The function b (z) = 0.05x+75,

value of x =  10000 minutes

Now putting the value of x into the equation we get:

b (z) = 0.05x+75,

b (z) = 0.05(10000)+75,

b (z) = 0.05(10000)+75,

       = 500 + 75

b (z) = 575

The bill if she uses her phone for 10000 minutes = 575.

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− 24 − (4x − 6) = − 2(− 8 x− 11)


A common wrong answer to this equation is x = − 7/20. This student does not

understand the distributive property. Show steps how a student would get this

answer. Explain in detail what the student did wrong and what they don’t

understand about the distributive property.


please help fast!!!

Answers

Answer:

-24 - 4x + 6= 16x + 22

-29 -22 = 16x +4x

-51 = 20x

x= -51/20

The value of X is represented with a point 4 unit to the left of 0

Answers

The x coordinate will be -4 for the expression "a point 4 unit to the left of 0".

We are given an expression:

" a point 4 unit to the left of 0 "

We need to find the value of x coordinate for this expression.

In geometry, a coordinate system is a system that makes use of one or extra numbers, or coordinates, to uniquely decide the placement of the factors or different geometric factors on a manifold which include Euclidean space.

We can write the expression as:

4 unit to the left of 0 will be - 4

So the point becomes:

( - 4 , 0)

So, the x coordinate becomes,

x = - 4

Therefore, the x coordinate will be -4 for the expression "a point 4 unit to the left of 0".

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A carpenter cut the top section of a window frame with a 40º angle on each end. The side pieces each have a 50º angle cut at their top ends, as shown.
Will the side pieces of the frame be parallel?
How do you know?
(Click document to see image)

Answers

If a carpenter cut the top section of a window frame with a 40º angle on each end. The side pieces each have a 50º angle cut at their top ends, as shown. Yes the side pieces of the frame will be parallel. How i know is that both side are equal or parallel.

Parallel

The interior angles are the same or equal in measure. On the other hand the sum of the interior angles have to  be 180°.

The two side  pieces on the right hand and left hand side are equal in measure. The sides can be parallel only if the sum of both side angles is equal to 180°

Let calculate the one side of the interior angle and both side of the interior angle

One side of the interior angle=40º+50º

One side of the interior angle=90°

Both side of the interior angle=90°+90°

Both side of the interior angle=180°

Hence,

The side are parallel because: 180°=180°

Therefore Yes the side pieces of the frame will be parallel. How i know is that both side are equal or parallel.

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The radius of the base of a cylinder is 38 mm and it’s height is 51 mm. Find the surface area of the cylinder in terms of pi.

Answers

The surface area of the cylinder is 6764π mm².

Given the radius of the cylinder is 38 mm and

the height of the cylinder is 51 mm.

we are asked to determine the surface area = ?

we know that surface area of a cylinder = 2πrh + 2πr²

given, r = 38 mm

h = 51 mm

substitute the above values to get the surface area.

A = 2πrh + 2πr²

A = 2π(38)(51) + 2π(38)²

A = 2π(1938) + 2π(1444) mm²

A = 3876π + 2888π mm²

A = 6764π mm²

Hence the surface area of the cylinder is 6764 mm² in terms of π.

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A semi-circular transom above a 34 inch door is to contain a stained glass window. If the stained glass
window costs $1.40 per square inch, how much will the window cost?

Answers

The cost of the semi-circular transom stained glass window is $107.702.

What is defined as the semicircle?

A semicircle is formed when a circle is divided in half along its diameter. The two halves are equal in size.

A semicircle, also known as a half-disk, is a circular sheet plate that has been folded in half. The semicircle has one line of symmetry, which is known as the reflection symmetry. Because the semicircle is half of a 360° circle, the semicircle's arc always measures 180°.

Now, for the for given question;

The width of the door is given as 34 inch which is same as the diameter of the semicircle of window.

The radius of the window becomes 34/2 = 17 inches.

Now, the formula for the area of the semicircle is;

A = πr²/2

Where, r is the radius and π = 3.14.

Substitute the values;

A = (3.14)(17)²/2

On simplification

A = 76.93 square inch.

Now, the cost of window glass is $1.40 per square inch.

Thus, for 76.93 square inch.

Rate = 76.93×1.40

Rate = $107.702

Therefore, the cost of the semi-circular transom stained glass window is found to be $107.702.

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using the fractions 2/3 and 3/4 describe how to give two fractions common denominators. In terms of math drawings what are you doing when you give fractions common denominators/what stays the same and what changes?

Answers

We solely used prime integers to find the prime factorization, giving us the least common denominator for 2/3 and 3/4. Final answer is 12.

What is prime integers?

A prime number is any natural number greater than one that is not the sum of two lesser natural numbers. Any natural number greater than one that is not prime is referred to as a composite number. For instance, the product 1 5 and 5 1 are the only two ways to write the number 5, making it a prime.

If a positive integer's sole factors are one and itself, then it is a prime number if it is greater than or equal to 2.

One approach is to determine the denominators' prime factorization, which are 3 and 4. Three would be prime factorized as 1 x 3 and four as 2 x 2, respectively. We would have 2 x 2 x 3 = 12 if we solely used prime integers to find the prime factorization, giving us the least common denominator for 2/3 and 3/4. Final answer is 12.

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Ebony earned scores of 70 , 72 , 89 , 92 , 89 and 80 on six math tests. Determine her score on the seventh test if her average for the seven tests was 80? Enter your answer as a whole number

Answers

Answer:

70

Step-by-step explanation:

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