<PRE><B>Question 839870</B>
60% of emails deal in some way with economy, 
if a random sample of 10 email is selected, 
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Binomial Problem with n = 10 and P(economy) = 0.60 ; P(not economy) = 0.40
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what is the probability of 
Exactly 5 emails deal in someway with economy
P(x = 5) = 10C5*0.6^5*0.4^5 = binompdf(10,0.60,5) = 0.2007
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Exaclty 5 emails do not deal in someway with economy
Ans: Same as above:: 0.2007
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Cheers,
Stan H.
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