Question 422542: From an inventory of 48 new cars being shipped to local dealerships, corporate
reports indicate that 12 have defective radios installed. What is the probability that out of 8 new cars it just received, a dealership would discover, after testing, that exactly half of the cars have defective radios?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! From an inventory of 48 new cars being shipped to local dealerships, corporate
reports indicate that 12 have defective radios installed.
What is the probability that out of 8 new cars it just received, a dealership would discover, after testing, that exactly half of the cars have defective radios?
Binomial Problem with n = 8 and p = 12/48 = 1/4
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P(x = 4) = 8C4(0.25)^4*(0.75)^4 = 0.08652
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Cheers,
Stan H.
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