It is known that 70% of the customers in a sporting goods store purchase a pair

Question

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 the customers' purchases are made independently. In this binomial distribution application, which Excel statement will find the probability of between 5 and 10 customers, inclusively, purchasing a pair of running shoes? = BINOMDIST(10, 25, 70%, TRUE)-BINOMDIST(4, 25, 70%, TRUE) = BINOMDIST(10, 25, 70%, FALSE) - BINOMDIST(5, 25, 70%, FALSE) = 1-BINOMDIST(5, 25, 70%, TRUE) = 1-BINOMDIST(5, 10, 70%, FALSE)

Explanation / Answer

n = 25

Since P between 5 and 10 is asked, C and D are out of question

TRUE - is for cumulative probability

Therefore, the answer is A

=BINODIST(10,25,70%,TRUE) - BINODIST(4,25,70%,TRUE)

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