SOLUTION: Please help I don't know where to start!! A jewelry supplier has a supply of pairs of earrings of which 40% are platinum paries. A jewelry store orders 5 sets of earrings fro

Question 519531: Please help I don't know where to start!!

A jewelry supplier has a supply of pairs of earrings of which 40% are platinum paries. A jewelry store orders 5 sets of earrings from this supplier. If the supplier selects the pairs of earrings at random, what is the chance that the jewelry store gets exactly 2 sets of platinum pairs?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A jewelry supplier has a supply of pairs of earrings of which 40% are platinum paries. A jewelry store orders 5 sets of earrings from this supplier. If the supplier selects the pairs of earrings at random, what is the chance that the jewelry store gets exactly 2 sets of platinum pairs?
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Binomial Problem with n = 5 and p(platinum) = 0.4
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P(x = 2) = 5C2*0.4^2*0.6^3 = binompdf(5,0.4,2) = 0.3456
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Cheers,
Stan H.
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