Question

Asked Oct 16, 2019

Recent statistics suggest that 15% of those who visit a retail site on the World Wide Web make a purchase. A retailer wished to verify this claim. To do so, she selected a sample of 16 "hits" to her site and found that 4 had actually made a purchase.

a. What is the likelihood of exactly four purchases? **(Round your answer to 4 decimal places.)**

b. How many purchases should she expect? **(Round your answer to 1 decimal place.)**

c. What is the likelihood that four or more "hits" result in a purchase? **(Round your answer to 2 decimal places.)**

Step 1

(a)

The likelihood of exactly four purchases is,

Step 2

Thus, the likelihood of exactly four purchases is **0.1311**.

(b)

The number of purchases should she expect *is,*

Step 3

Thus, the number purchases should she expect *is ***2.4**.

(c)

The likelihood that fou...

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