SOLUTION: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 60% of this population
prefers the color red. If 18 buyers are randomly selected,
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Question 866946: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 60% of this population
prefers the color red. If 18 buyers are randomly selected, what is the probability that exactly 15 buyers would prefer red?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 60% of this population
prefers the color red. If 18 buyers are randomly selected, what is the probability that exactly 15 buyers would prefer red?
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Binomial Problem with n = 18 and P(red) = 0.60
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P(x = 15) = 18C15*(0.6)^15*(0.4)^3 = binompdf(18,0.6,15) = 0.0246
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Cheers,
Stan H.
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