A clothing store has a return policy that allows a customer to exchange items or cash refund. 25% of customers choose cash refund. If there are 16 customers come for return, find (a) the probability that there are more than 2 customers choose cash refund. (b) the mean and standard deviation of the number of customers choose cash refund.
A clothing store has a return policy that allows a customer to exchange items or cash refund. 25% of customers choose cash refund. If there are 16 customers come for return, find (a) the probability that there are more than 2 customers choose cash refund. (b) the mean and standard deviation of the number of customers choose cash refund.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![QUESTION 7
A clothing store has a return policy that allows a customer to exchange items or cash refund.
25% of customers choose cash refund. If there are 16 customers come for return, find
(a) the probability that there are more than 2 customers choose cash refund.
(b) the mean and standard deviation of the number of customers choose cash refund.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3a03f0b-86de-42d1-bf43-0c20c8a1bd7c%2F1ff4b07d-6299-4bbb-bc23-bba3090a9894%2Fdycv8a1i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:QUESTION 7
A clothing store has a return policy that allows a customer to exchange items or cash refund.
25% of customers choose cash refund. If there are 16 customers come for return, find
(a) the probability that there are more than 2 customers choose cash refund.
(b) the mean and standard deviation of the number of customers choose cash refund.
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