SOLUTION: find the indicated probabilities One in four adults is currently on a diet. You randomly select eight adults and ask them if they are currently on a diet. /find the probability

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Question 908860: find the indicated probabilities
One in four adults is currently on a diet. You randomly select eight adults and ask them if they are currently on a diet. /find the probability that the number who say they are currently on a diet is (a)exactly three, (b)at least three, and (c) more than three

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
P(diet) = .25, n = 8
P(x=3) = binompdf(8, .25,3)
P(x ≥ 3) = 1 - binomcdf(8, .25, 2)
P(x > 3) = 1 - binomcdf(8, .25, 3)