Refer to Problem 5.42. In the same time period, 25% of the consumers registering a bank account
Question:
a. What is the expected value, or mean, of the binomial distribution?
b. What is the standard deviation of the binomial distribution?
c. What is the probability that none of the 20 consumers cited “deposit and withdrawal” as the type of complaint?
d. What is the probability that no more than 2 of the consumers cited “deposit and withdrawal” as the type of complaint?
e. What is the probability that 3 or more of the consumers cited “deposit and withdrawal” as the type of complaint?
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Related Book For
Business Statistics A First Course
ISBN: 9780321979018
7th Edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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