Upon analyzing the cash register receipts of a large department store over an extended period of time, it is found that 30 percent of the customers pay for their purchases by credit card, 50 percent pay by cash, and 20 percent pay by check. Of the next five customers that make purchases at the store, what is the probability that three of them will pay by credit card?
Upon analyzing the cash register receipts of a large department store over an extended period of time, it is found that 30 percent of the customers pay for their purchases by credit card, 50 percent pay by cash, and 20 percent pay by check. Of the next five customers that make purchases at the store, what is the probability that three of them will pay by credit card?
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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Transcribed Image Text:Upon analyzing the cash register receipts of a large department store over an
extended period of time, it is found that 30 percent of the customers pay for their
purchases by credit card, 50 percent pay by cash, and 20 percent pay by check. Of
the next five customers that make purchases at the store, what is the probability
that three of them will pay by credit card?
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