A recent survey reported that the average American adult eats ice cream 28 times per year. The same survey indicated 33 percent of the respondents said vanilla was their favorite flavor of ice cream. Nineteen percent said chocolate was their favorite flavor. There are 10 customers waiting for ice cream at the Highway 544 Ben and Jerry’s ice cream and frozen yogurt store.

(a) How many would you expect to purchase vanilla ice cream?
(b) What is the probability exactly three will select vanilla ice cream?
(d) What is the probability at least one will select chocolate ice cream?

Question

A recent survey reported that the average American adult eats ice cream 28 times per year. The same survey indicated 33 percent of the respondents said vanilla was their favorite flavor of ice cream. Nineteen percent said chocolate was their favorite flavor. There are 10 customers waiting for ice cream at the Highway 544 Ben and Jerry’s ice cream and frozen yogurt store.

(a)	How many would you expect to purchase vanilla ice cream?
(b)	What is the probability exactly three will select vanilla ice cream?
(d)	What is the probability at least one will select chocolate ice cream?

anonymous · Answer

anyone know how to do this question?? i only know this question is calculated by using permutation & combination...