31. Nine percent of undergraduate students carry credit card balances greater than $7000 (Readers Digest, July 2002).
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31. Nine percent of undergraduate students carry credit card balances greater than $7000
(Reader’s Digest, July 2002). Suppose 10 undergraduate students are selected randomly to be interviewed about credit card usage.
a. Is the selection of 10 students a binomial experiment? Explain.
b. What is the probability that two of the students will have a credit card balance greater than $7000?
c. What is the probability that none will have a credit card balance greater than $7000?
d. What is the probability that at least three will have a credit card balance greater than $7000?
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Related Book For
Essentials Of Statistics For Business And Economics
ISBN: 9780324568608
5th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
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