3. For sales in a clothing shop probability that a customer buys P = 0.4 and if 10 customers visit the shop per hour (i.e., n = 10), find the probability that the number of sales per hour is equal to 5 and the probability that the number of sales is fewer than 2.
Added by Jessica C.
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Since we are dealing with the number of sales (which is a count of events) in a given time period, the appropriate distribution to use is the Poisson distribution. Show more…
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