SOLUTION: 160 out of 1,000 adults contribute to charitable agencies on a regular basis. Find the probability that in a random sample of 12 adults, exactly five contribute to charitable agen

Question 934490: 160 out of 1,000 adults contribute to charitable agencies on a regular basis. Find the probability
that in a random sample of 12 adults, exactly five contribute to charitable agencies on a regular
basis.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
For each adult in the random sample, the probability that he/she contributes to charitable agencies on a regular basis is
,
and the probability that he/she does not contribute to charitable agencies on a regular basis is
.
The probability that exactly 5 of the 12 randomly selected contribute to charitable agencies on a regular is represented by the term in the binomial expansion of

that has .
The coefficient of that term is .
The term is
(rounded).
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