SOLUTION: cars with a certain security system are recovered 87% of the time what is the probability that 4 out 7 cars are recovered?
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Question 820647: cars with a certain security system are recovered 87% of the time what is the probability that 4 out 7 cars are recovered? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! cars with a certain security system are recovered 87% of the time what is the probability that 4 out 7 cars are recovered?
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P(x=4) = 7C4*(0.87)^4*(0.13)^3 = binompdf(7,0.87,4) = 0.0441
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Cheers,
Stan H.
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