SOLUTION: Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round
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Question 1039890: Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Only 35% of the drivers in a particular city wear seat belts. Suppose that 20 drivers are stopped at random what is the probability that exactly four are wearing a seatbelt? (Round your answer to 4 decimal places)
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Binomial Problem with p = 0.35; n = 20
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P(x = 4) = 20C4*0.35^4*0.65^16 = binompdf(20,0.35,4) = 0.0738
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Cheers,
Stan H.
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