SOLUTION: There are 60% heating equipment 25% electrical equipment and 15% plumbing equipment in a store, what is the probability that at least 3 out of 5 of the items bought are heating equ

Question 298523: There are 60% heating equipment 25% electrical equipment and 15% plumbing equipment in a store, what is the probability that at least 3 out of 5 of the items bought are heating equipment?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
There are 60% heating equipment 25% electrical equipment and 15% plumbing equipment in a store, what is the probability that at least 3 out of 5 of the items bought are heating equipment?
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P(heating) = 0.6
n = 5
x = 3<= x <=5
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P(3<= x <=5) = 1 - binomcdf(5,0.6,2) = 0.6826
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Cheers,
Stan H.
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