Solved: Number of Credit Cards A bank vice president feels
Chapter 5, Problem 3(choose chapter or problem)
Number of Credit Cards A bank vice president feels that each savings account customer has, on average, three credit cards. The following distribution represents the number of credit cards people own. Find the mean, variance, and standard deviation. Is the vice president correct? 1.3, 0.9, 1. No, on average, each person has about 1 credit card. Number of cards X 0 1 2 3 4 Probability P(X) 0.18 0.44 0.27 0.08 0.03
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