SOLUTION: According to an Internet posting, 80% of adults enjoy drinking beer. A group of 7 adults is chosen randomly. The probability that no more than 3 of them enjoy drinking beer is:

Question 721249: According to an Internet posting, 80% of adults enjoy drinking beer. A group of 7 adults is chosen randomly. The probability that no more than 3 of them enjoy drinking beer is:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
According to an Internet posting, 80% of adults enjoy drinking beer. A group of 7 adults is chosen randomly. The probability that no more than 3 of them enjoy drinking beer is:
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Binomial Problem with n = 7 ; p(drink)= 0.8
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P(0<= x <=3) = binomcdf(7,0.8,3) = 0.0333
Cheers,
Stan H.
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