A large chain retail store has "scratcher" cards that customers can scratch and win a discount at the register if the customer uses the store's credit card. The following is a table with the discount that a customer can scratch off and the corresponding probability of that discount being awarded. Note: the discount percentage IS NOT related to the probability. Do not use the discount percentage to calculate any of the probabilities below. Discount Probability 10% off 0.50 15% off 0.25 20% off 0.15 30% off 0.10 1. What is the probability a customer gets at least a 20% discount? 2. What is the probability that two customers in a row get a 10% discount? 3. What is the probability that three consecutive customers get all get 15% discounts? 4. What is the probability that none of the first four customers gets over a 20% discount? 5. What is the probability that the first person to get a 30% discount is the fifth person in line? 6. You the 7th person in line and notice that the 5 people ahead of you have all gotten 10% discounts. The person in front of you says, "One of us has to get better than 10% off, now"! Do you think someone is due to get a better discount now that 5 people did not?

A large chain retail store has "scratcher" cards that customers can scratch and win a discount at the register if the customer uses the store's credit card. The following is a table with the discount that a customer can scratch off and the corresponding probability of that discount being awarded. Note: the discount percentage IS NOT related to the probability. Do not use the discount percentage to calculate any of the probabilities below. Discount Probability 10% off 0.50 15% off 0.25 20% off 0.15 30% off 0.10 1. What is the probability a customer gets at least a 20% discount? 2. What is the probability that two customers in a row get a 10% discount? 3. What is the probability that three consecutive customers get all get 15% discounts? 4. What is the probability that none of the first four customers gets over a 20% discount? 5. What is the probability that the first person to get a 30% discount is the fifth person in line? 6. You the 7th person in line and notice that the 5 people ahead of you have all gotten 10% discounts. The person in front of you says, "One of us has to get better than 10% off, now"! Do you think someone is due to get a better discount now that 5 people did not?

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Description: A large chain retail store has "scratcher" cards that customers can scratch and win a discountat the register if the customer uses the store's credit card. The following is a table with thediscount that a customer can scratch off and the correspondi

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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Topic Video

Question

100%

A large chain retail store has "scratcher" cards that customers can scratch and win a discount
at the register if the customer uses the store's credit card. The following is a table with the
discount that a customer can scratch off and the corresponding probability of that discount
being awarded. Note: the discount percentage IS NOT related to the probability. Do not use
the discount percentage to calculate any of the probabilities below.
Discount Probability
10% off
0.50
15% off
0.25
20% off
0.15
30% off
0.10
1. What is the probability a customer gets at least a 20% discount?
2. What is the probability that two customers in a row get a 10% discount?
3. What is the probability that three consecutive customers get all get 15% discounts?
4. What is the probability that none of the first four customers gets over a 20% discount?
5. What is the probability that the first person to get a 30% discount is the fifth person in
line?
6. You the 7th person in line and notice that the 5 people ahead of you have all gotten
10% discounts. The person in front of you says, "One of us has to get better than 10%
off, now"! Do you think someone is due to get a better discount now that 5 people did
not?

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