SOLUTION: a telemarketer makes a sale on 48% of his calls. if he makes a total of 12 calls in one hour, what is the probability he will make exactly seven sales?

Question 690351: a telemarketer makes a sale on 48% of his calls. if he makes a total of 12 calls in one hour, what is the probability he will make exactly seven sales?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a telemarketer makes a sale on 48% of his calls. if he makes a total of 12 calls in one hour, what is the probability he will make exactly seven sales?
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Binomial Problem with n = 12 ; p(make sale) = 0.48
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P(x = 7) = 12C7(0.48)^7*0.52^5 = binompdf(12,0.48,7) = 0.1768
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Cheers,
Stan H.
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