SOLUTION: A machine has 5 identical components which function independently. The probability that a component will fail is 0.2 . The machine will stop working if at least 4 components fail.

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Question 849115: A machine has 5 identical components which function independently. The probability that a component will fail is 0.2 . The machine will stop working if at least 4 components fail. What is the probability that the machine will stop working?


Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
P(x≥ 4) = 1 – binomcdf(n, p, largest x-value)= 1 - binomcdf(5, .2, 3)