A poll is given showing 40 are in favor of a new building pr

A poll is given, showing 40% are in favor of a new building project.

If 3 people are chosen at random, what is the probability that exactly 1 of them favor the new building project?

Solution

the probability that exactly 2 of them favor the new building project=8c2(0.35)²(0.65)⁶=0.258