In a population where

Question

85% prefer Candidate A, an organization conducts a poll of 19 voters. Find the probability that 17 of the 19 voters will prefer Candidate A.

Answer 1

another binomial

p (prefer A) = .85 = (P)

p (not prefer A) = .15 = (N)

(P + N)^19 = 19C17 P^17 N^2
... = 171 * .85^17 * .15^2