Question 693895: Suppost that 14% people are left handed. If 9 people are selected at random, What is the possibility that exactly 2 of them are left handed?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Suppose that 14% people are left handed. If 9 people are selected at random, What is the possibility that exactly 2 of them are left handed?
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Binomial Problem with n = 9 ; p(left) = 0.14 ; p(right) = 0.86
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P(x = 2) = 9C2*0.14^2*0.86^7
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= binompdf(9,0.14,2) = 0.2455
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Cheers,
Stan H.
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