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 between 17 and 21 customers,inclusively,purchase running shoes?
Correct Answer:
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P(17 ≤ X ≤ 21)= P(X ...View Answer
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Correct Answer:
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