SOLUTION: 80% of the voters favor Ms. Stein if 4 voters are chose at random, find the probability that noe support Ms Stein and the probability that at leaast one support Ms Stein

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Question 465078: 80% of the voters favor Ms. Stein if 4 voters are chose at random, find the probability that noe support Ms Stein and the probability that at leaast one support Ms Stein
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
P(none of the 4 supports Ms. Stein) = 0.20*0.20*0.20*0.20 = 0.0016
P(At least one supports Ms. Stein)= 1 - 0.0016 = 0.9984