On average, 5 customers per hour arrive at a certain shop. What is the probability that in any given hour at this shop (a) exactly 3 customers will arrive? (b) at least 5 customers will arrive? (c) fewer than 4 customers will arrive?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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. On average, 5 customers per hour arrive at a certain shop. What is the probability that in any given hour at this shop (a) exactly 3 customers will arrive? (b) at least 5 customers will arrive? (c) fewer than 4 customers will arrive?
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