At a popular department store, customers receive a scratch - off card when they are at the checkout counter, and the card will reveal a discount the customer can receive on their purchase. Customers can receive discounts of 10%, 20%, 30%, or 50% off the purchase price. Below, for Questions ó through 9, we show you different possible probability models based on the distribution of discounts that can be given. 6. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.20 0.20 0.20 0.20 7. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 1.0 0 0 0 8. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.80 0.10 0.05 0.059. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.75 0.25 0.25 -0.25 4 10. Allan plays solitaire on his computer a total of 470 times. He wins 79 of the 470 games of solitaire. If we randomly select one of the solitaire games that Allan played, the probability he will have won that game is equal to what value? Please round your answer to three decimal places. Part 2: Sampling Distributions In Chapter 18, you are introduced to the idea of a sampling distribution. The purpose of the next few questions is to help you better understand what a sampling distribution is and how we can use what is known about sampling distributions to answer different kinds of questions. Have you ever wondered what percentage of college students graduate in four years? It turns out that in the population of all college students, 41% are able to graduate in four years. 11. Suppose you survey a random sample of n = 50 recent college graduates and find that 21 of these students graduated in four years. What will your sample proportion, or◆◆, be?
At a popular department store, customers receive a scratch - off card when they are at the checkout counter, and the card will reveal a discount the customer can receive on their purchase. Customers can receive discounts of 10%, 20%, 30%, or 50% off the purchase price. Below, for Questions ó through 9, we show you different possible probability models based on the distribution of discounts that can be given. 6. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.20 0.20 0.20 0.20 7. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 1.0 0 0 0 8. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.80 0.10 0.05 0.059. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.75 0.25 0.25 -0.25 4 10. Allan plays solitaire on his computer a total of 470 times. He wins 79 of the 470 games of solitaire. If we randomly select one of the solitaire games that Allan played, the probability he will have won that game is equal to what value? Please round your answer to three decimal places. Part 2: Sampling Distributions In Chapter 18, you are introduced to the idea of a sampling distribution. The purpose of the next few questions is to help you better understand what a sampling distribution is and how we can use what is known about sampling distributions to answer different kinds of questions. Have you ever wondered what percentage of college students graduate in four years? It turns out that in the population of all college students, 41% are able to graduate in four years. 11. Suppose you survey a random sample of n = 50 recent college graduates and find that 21 of these students graduated in four years. What will your sample proportion, or◆◆, be?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:At a popular department store, customers receive a scratch - off card when they are at the checkout counter, and the
card will reveal a discount the customer can receive on their purchase. Customers can receive discounts of
10%, 20%, 30%, or 50% off the purchase price. Below, for Questions ó through 9, we show you different possible
probability models based on the distribution of discounts that can be given. 6. Is the model below legitimate? Explain
why or why not. Discount 10% off 20% off 30% off 50% off Probability 0.20 0.20 0.20 0.20 7. Is the model below
legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability 1.0 0 0 0 8. Is the model
below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50% off Probability
0.80 0.10 0.05 0.05 9. Is the model below legitimate? Explain why or why not. Discount 10% off 20% off 30% off 50%
off Probability 0.75 0.25 0.25 -0.25 4 10. Allan plays solitaire on his computer a total of 470 times. He wins 79 of the
470 games of solitaire. If we randomly select one of the solitaire games that Allan played, the probability he will have
won that game is equal to what value? Please round your answer to three decimal places. Part 2: Sampling Distributions
In Chapter 18, you are introduced to the idea of a sampling distribution. The purpose of the next few questions is to help
you better understand what a sampling distribution is and how we can use what is known about sampling distributions
to answer different kinds of questions. Have you ever wondered what percentage of college students graduate in four
years? It turns out that in the population of all college students, 41% are able to graduate in four years. 11. Suppose you
survey a random sample of n = 50 recent college graduates and find that 21 of these students graduated in four years.
What will your sample proportion, or ◆◆, be?
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