There are 113 households on the marketing call list. Each of 19 telemarketers in
ID: 3296167 • Letter: T
Question
There are 113 households on the marketing call list. Each of 19 telemarketers independently picks one house at random to call during the dinner hour and try to sell them a lemon. The probability that a telemarketer succeeds, and sells a lemon to the household they call, is 0.9.
(a). How many households do you expect to buy a lemon? (Note that a household could buy more than one lemon – in fact, it could be that all 19 telemarketers call the same household, and they may all succeed in “selling” them a lemon! Assume that the calls are short, so it is possible for a household to receive many calls during dinner.)
(b). What is the expected number of lemons sold?
Explanation / Answer
a) No of Household are expected to buy a lemon = 0.141*113 = 15.9
B) expected no of lemons sold = 19*0.9 = 17.1
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.