Mathematics College

What is the z score for Brazil?

Answers

Answer 1

The z-score for Brazil is given as follows:

Z = 0.87.

What is the z-score formula?

The z-score formula is defined as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

In which:

X is the measure.[tex]\mu[/tex] is the population mean.[tex]\sigma[/tex] is the population standard deviation.

The parameters for this problem are given as follows:

[tex]X = 6.24, \mu = 4.8, \sigma = 1.66[/tex]

Hence the z-score for Brazil is given as follows:

Z = (6.24 - 4.8)/1.66

Z = 0.87.

More can be learned about z-scores at https://brainly.com/question/25800303

#SPJ1

Related Questions

The following is a list of shoe sizes for a group of 13 people.

4.5, 9.5, 8, 6.5, 10, 7, 8.5, 6, 7.5, 9, 6, 7, 11

Which of the following box plots best represents the numerical data?

A box plot using a number line from 3 to 12.25 with tick marks every one-fourth unit. The box extends from 6.25 to 9.25 on the number line. A line in the box is at 7.5. The lines outside the box end at 4.5 and 11. The graph is titled Shoe Sizes, and the line is labeled Size of Shoe.
A box plot using a number line from 3 to 11.25 with tick marks every one-fourth unit. The box extends from 6.25 to 8.75 on the number line. A line in the box is at 7.25. The lines outside the box end at 4.5 and 10. The graph is titled Shoe Sizes, and the line is labeled Size of Shoe.
A box plot using a number line from 3 to 13 with tick marks every one-half unit. The box extends from 6.5 to 9 on the number line. A line in the box is at 7.5. The lines outside the box end at 4.5 and 12. The graph is titled Shoe Sizes, and the line is labeled Size of Shoe.
A box plot using a number line from 3 to 12.5 with tick marks every one-fourth unit. The box extends from 6.25 to 8.75 on the number line. A line in the box is at 7.5. The lines outside the box end at 4.5 and 10.5. The graph is titled Shoe Sizes, and the line is labeled Size of Shoe.

Answers

The box plot that best represents the numerical data is: A. A box plot using a number line from 3 to 12.25 with tick marks every one-fourth unit. The box extends from 6.25 to 9.25 on the number line. A line in the box is at 7.5. The lines outside the box end at 4.5 and 11. The graph is titled Shoe Sizes, and the line is labeled Size of Shoe.

How to complete the five number summary of a data set?

In order to determine the five-number summary for the survey, we would arrange the data set in an ascending order:

4.5,6,6,6.5,7,7,7.5,8,8.5,9,9.5,10,11

Based on the information provided about the list of shoe sizes for a group of 13 people, we would use a graphical method (box plot) to determine the five-number summary for the given data set as follows:

Minimum (Min) = 4.5.

First quartile (Q₁) = 6.25.

Median (Med) = 7.5.

Third quartile (Q₃) = 9.25.

Maximum (Max) = 11.

Read more on boxplot here: brainly.com/question/29648407

#SPJ1

A company Charting its profits notices that the relationship between the number of units sold,x, and the profit,P, is a linear. If 170 units sold results in $20 profit and 220 units sold results in $2820 profit, write the profit function for this company.
P=
Find the marginal profit
$

Answers

Step-by-step explanation:

a linear relationship or function is described in general as

y = f(x) = ax + b

Because the variable term has the variable x only with the exponent 1, this makes this a straight line - hence the name "linear".

here f(x) is P(x) :

P(x) = ax + b

now we are using both given points (ordered pairs) to calculate a and b :

20 = a×170 + b

2820 = a×220 + b

to eliminate first one variable we subtract equation 1 from equation 2 :

2800 = a×50

a = 2800/50 = 280/5 = 56

now, we use that in any of the 2 original equations to get b :

20 = 56×170 + b

b = 20 - 56×170 = 20 - 9520 = -9500

so,

P(x) = 56x - 9500

Team A and Team B together won 50% more games than Team C did. Team A won 50% as many games as Team B did. The three teams won 60 games in all. How many games did each team win?

Answers

Let's assign variables to represent the number of games won by each team:

Let x be the number of games won by Team A.
Let y be the number of games won by Team B.
Let z be the number of games won by Team C.

From the given information, we can form the following equations:

Equation 1: x + y + z = 60 (The total number of games won by the three teams is 60.)

Equation 2: x = (1/2)y (Team A won 50% as many games as Team B.)

Equation 3: x + y = 1.5z (Team A and Team B together won 50% more games than Team C.)

Now, let's solve this system of equations:

Substituting Equation 2 into Equation 3, we get:

(1/2)y + y = 1.5z
(3/2)y = 1.5z
y = (1.5z) * (2/3)
y = z

Substituting y = z into Equation 1, we have:

x + y + z = 60
x + y + y = 60
x + 2y = 60

Substituting y = z into Equation 3, we have:

x + y = 1.5z
x + y = 1.5y
x = 0.5y

Now, we can substitute x = 0.5y and y = z into Equation 1:

0.5y + 2y = 60
2.5y = 60
y = 60 / 2.5
y = 24

Substituting y = 24 into x = 0.5y:

x = 0.5 * 24
x = 12

Substituting y = 24 into the equation y = z:

z = 24

Therefore, Team A won 12 games, Team B won 24 games, and Team C won 24 games as well.

PLEASE HELPP: 2.11.2 Project: Performance Task: The Parallax Problem (For San Francisco)

The Scenario: You’re looking for a sponsor to pay for you to participate in a sailboat race. Now that you’ve solved the parallax problem, use the same skills you used there to write a proposal that shows that you can win the race.
The Project: Use the information provided in the performance task to estimate your travel costs and to calculate your average speed and the speed of last year’s winner. Use the questions below to help you gather information to write your proposal

3. What is the distance between buoy A and B? (5 points)

4. What are the lengths of the other two triangle legs? (4 points: 2 points each)
Remember what you know about the shape of the Race Course.

5. What is the total length of the race course? (4 points: 3 for calculation, 1 for answer)

Part VIII: Calculate the winner’s speed. (10 points)
1. What was the winner’s speed during last year’s race? (5 points: 3 points for speed. 2 points for conversion to knots).

2. How does the winner’s speed compare with your average speed? How much faster or slower are you? (5 points)

Part IX: Write your proposal. (8 points)

Now it’s time to make your proposal to the sponsor. Your sponsor will have their logo on your boat, so they want to be sure it’s likely to do well. The sponsor also needs to know what the expenses and risks are, so they know how much their investment in you will cost.

1. Complete the table to summarize the results of your study. (4 points)
Category:
Race:
Risk Analysis:
Itemized Travel Cost

Safety hazards

Competitive Analysis:
My time and speed

Last year's winning time and speed

Reward Analysis:
My chances of winning

2. Write a summary paragraph explaining why the sponsor should accept your proposal. (4 points)

Answers

The proposal is as follows

Part III - The distance between buoys A and B is 12.8 kilometers.

Part IV - The length of the other two triangle legs are 10.2 kilometers and 8.4 kilometers.

Part V - The total length of the race course is 31.4 kilometers.

Part VIII - The winner's speed during last year's race was 10.8 knots.

See the proposal attached.

Why the sponsor should accept your proposal

Dear Sponsor,

I'm seeking sponsorship for the San Francisco sailboat race.

With a proven track record and the determination to win, your investment of $5,500 covers travel costs and potential hazards.

By associating your brand with a winning sailor, you'll gain significant exposure to thousands of spectators. Join me in this thrilling race for success.

Sincerely,

[Your Name]

Learn more about proposal at:

https://brainly.com/question/29307495

#SPJ1

Other Questions

How many liters of oxygen will be required to react with .56 liters of sulfur dioxide? Which of the following is TRUE regarding the muscle sarcomere? Ca2+ binds to Troponin, altering the position of Tropomyosin, revealing Myosin binding sites on Actin. ATP binds to Actin molecules in proportion to intracellular Ca2+ concentration ATP limitation halts the cross bridge cycle after Myosin detaches from Actin, reducing the capacity of musdes to generate tension. Ca2+ binds to Troponin, which then occupy Myosin binding sites on Actin, reducing the capacity of musclesperate tension. A current circulates around a 2. 10-mm-diameter superconducting ring. What is the ring's magnetic dipole moment? Express your answer in amper-meters squared with the appropriate units. What is the on-axis magnetic field strength 5.10 cm from the ring? Express your answer with the appropriate units. Simple Harmonic Oscillator. For a CO (carbon monoxide) molecule, assume that the system vibrates at o=4.0.1014 [Hz]. a. Wavefunction: Sketch the wave function for the n=5 state of the SHO. Points will be given on qualitative accuracy of the solution. Include a brief description to help me understand critical components of your sketch and label the sketch appropriately. b. Probabilities: Make a qualitatively correct sketch that indicates the probability of finding the state as a function of interatomic separation for n=5 indicate any important features. (Sketch plus 1 sentence). c. Classical turning points: Calculate the probability that the interatomic distance is outside the classically allowed region for the n=1 state Question 14 1 points A 865 kg car traveling east collides with a 2.241 kg truck traveling west at 24.8 ms. The car and the truck stick together after the colision. The wreckage moves west at speed of 903 m/s What is the speed of the car in (n)? (Write your answer using 3 significant figures The exterior angle of a regular polygon is 5 times the interior angle. Find the exterior angle, the interior angle and the number of sides Abortion is one of the most difficult and controversial moral issues we will consider. Listen to both sides, even if it is difficult to do. Both sides have important moral insights, even if ultimately these insights are outweighed by the insights of the other side. The goal of this discussion is not to convince you to accept one position over the other, but to help you to understand both sides. As you consider this difficult issue, it is important to distinguish two questions:Is abortion morally wrong?Should abortion be illegal?Choose one of the questions above and argue both sides with supporting evidence. If you are using a motion encodr receiver to find the veloicty of a cart, how would you find the uncertainty in veloicty? The fact that experienced smartphone users can transmit more messages than newsmartphone users refers to what?Communication proficiencyCommunication propertyCommunication proprietaryCommunication performanceCommunication priority The colinical two orgnisun when their cell were seapreat from each other allcell were abie to surive explain why Determine the first three nonzero terms in the Taylor polynomial approximation for the given initial value problem. x +8tx=0;x(0)=1,x (0)=0 The Taylor approximation to three nonzero terms is x(t)=+. Can threats to people's social (i.e. group) identity lead to deviant attitudes and behaviors? Belmi et al. (2015) sought to answer this question. They had 188 self-identified Black American college students and 123 self-identified White American college students complete three sets of self-reported measures. The first set asked whether the student worried about being seen negatively in school because of their ethnicity. The second set asked whether the student felt and expected to be disrespected at school. The final set asked whether the student engaged in delinquent behaviors at school in the past year (e.g. cheating on a test, copying someone else's work, picking a fight, using drugs, etc.). As predicted, the authors found that the more students worried about being seen negatively in school because of their ethnicity, the more likely they were to engage in social deviance, though this relationship occurred only for Black American students. The same finding occurred for the disrespected variable. That is, the more students worried about being seen negatively in school because of their ethnicity, the more likely they felt disrespected. A. Did the study establish covariance (a change in one variable led to a change in the other)? Explain. B. Did the study establish temporal precedence (a change in one variable preceded a change in the other)? Explain. C. Did the study eliminate alternative explanations? Explain. D. Is the study design causal (experimental), correlational, or quasi-experimental? Physics4. Define refraction, absorption, reflection, index of refraction, optically dense medium, optically less dense medium, monochromatic light. Record the following information below. Be sure to clearly notate which number is which parameter. A.) time of five rotations B.) time of one rotation C.) distance from the shoulder to the elbow D.) distance from the shoulder to the middle of the hand. A. What was the average angular speed (degrees/s and rad/s) of the hand? B. What was the average linear speed (m/s) of the hand? C. Are the answers to A and B the same or different? Explain your answer. 1 hectare is defined as 1 x 10^4 m^2. 1 acre is 4.356 x 10^4 ft. How many acres are in 2.0 hectares? (Do not include units in your answer). Correct the italicized sentence fragment shown below. Rewrite it into a complete sentence.Because they were so tired of war.6. Write a sentence that you make up using the word there.7. Write a sentence that you make up using the word their.8. Write a sentence that you make up using the word they're.9. Write a sentence that you make up using the word it's.10. Write a sentence that you make up using the word its. What are the levels of organization from smallest to largest?What is the basic structural and functional unit of an organism?What are 3 components of a feedback system?Describe the following anatomical terms; superior, inferior, anterior/ventral, posterior/dorsal, medial, lateral, ipsilateral, contralateral, proximal, distal, superficial, deep, prone, supine. Evaluate and discuss the requirements of one of the following laws and how it applies in hiring. What does a manager need to do or not do to comply with it? Pregnancy Discrimination Act or Federal labor laws enforced by the National Labor Relations Board (NLRB) including National Labor Relations Act (NLRA) Due: Thursday, July 28, 2022 at B:30 am " thecks on Saturday, fuly 30,2022 at 8:30 am Severe weather con have a significant short-term effect on a restaurant's sales levels fissume you own a restauront chain where business is bikely to be offected by seiere winter weather. How would this impsct the development of your budget? D O Probabilities of outcomes are shown on the branches emanating from a decision node. Question 14 The procedure for mathematically solving decision trees and determining the optimal policy and EMV is called: O sensitivity analysis O folding back (rollback) O policy iteration Orisk profiling Question 15 2 pts 2 pts Suppose a chance/event node has 3 branches. The first two have probabilities of 0.35 and 0.25 associated with them. Write down the probability associated with the third branch.