Solved: Customers in a Bank A bank has a drive-through
Chapter 5, Problem 8(choose chapter or problem)
Customers in a Bank A bank has a drive-through service. The number of customers arriving during a (51) No; the sum of the probabilities is greater than 1. 1 12 1 12 1 12 5 6 (51) No. The sum of the probabilities does not equal 1. 3 10 2 10 1 10 3 10 1 10 15-minute period is distributed as shown. Find the mean, variance, and standard deviation for the distribution. (52) 2.1; 1.4; 1.2 Number of customers X 0 1 2 3 4 Probability P(X) 0.12 0.20 0.31 0.25 0.12
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