SOLUTION: one out of every 5 americans believe that the us govt should take primary responsibility for elimanting poverty in the us. If 10 americans are selected find the probabality that at

Question 242039: one out of every 5 americans believe that the us govt should take primary responsibility for elimanting poverty in the us. If 10 americans are selected find the probabality that at least 3 will believe that the us govt should take primary responsibilty for eliminating?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
one out of every 5 americans believe that the us govt should take primary responsibility for elimanting poverty in the us. If 10 americans are selected find the probabality that at least 3 will believe that the us govt should take primary responsibilty for eliminating?
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Binomial with n = 10, p= 1/5 , 3<= x <= 10
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Using a TI calculator I get:
Ans: 1 - binomcdf(10,0.2,2) = 0.3222
Cheers,
Stan H.
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