THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING

question 206

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
It is known that 70% of the customers in a sporting goods store purchase a pair of running shoes.A random sample of 25 customers is selected.Assume that customers' purchases are made independently,and let X represent the number of customers who purchase running shoes.(Hint: Solve using Excel. )
-What is the probability that at least 17 customers purchase running shoes?

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Sentence 1

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A sentence that expresses the main idea of the paragraph in which it occurs, often found at the beginning.

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