Statistics
posted by Anonymous
Suppose that
30%
of all college students smoke cigarettes. A sample of
18
is selected randomly. What is the probability that exactly
10
students smoke? Round your answer to four decimal places.

Damon
http://onlinestatbook.com/2/probability/binomial.html
C(18,10) = 18!/[10!(1810)]
P(18) = C(18,10) * .3^10 * .7*8 
Damon
http://www.statisticshowto.com/binomialdistributionformula/
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