During the one-hour lunch period in the first five days of
Chapter , Problem 6.40(choose chapter or problem)
During the one-hour lunch period in the first five days of the month, a bank expects, on average,20 customers. What is the probability that, during the lunch period in the first five days of the month, the bank (a) will have 25 customers? (b) will have between 20 and 25 (inclusive) customers? (c) will have 10 or fewer customers? (d) will have more than 10 customers?
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