SOLUTION: The probability that a corporation makes charitable contributions is .72. Two corporations are selected at random, and it is noted whether or not they make charitable contributions

Algebra ->  Probability-and-statistics -> SOLUTION: The probability that a corporation makes charitable contributions is .72. Two corporations are selected at random, and it is noted whether or not they make charitable contributions      Log On


   



Question 919255: The probability that a corporation makes charitable contributions is .72. Two corporations are selected at random, and it is noted whether or not they make charitable contributions.Find the probability that at most one corporation makes charitable contributions.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
p(contributing) = .72, p(not contributing) = .28 1-.72
Two chosen at trandom
P(at most one contributing) = 1 - P(neither contributing) = 1 - .28•.28 = 1-(.28)^2