SOLUTION: An urn contains 10 red balls and 7 yellow balls. If Vince chooses 7 balls at random from the urn, what is the probability that he will select 3 red balls and 4 yellow balls? Round

Algebra ->  Probability-and-statistics -> SOLUTION: An urn contains 10 red balls and 7 yellow balls. If Vince chooses 7 balls at random from the urn, what is the probability that he will select 3 red balls and 4 yellow balls? Round       Log On

Hi
An urn contains 17 balls: "10 red balls and 7 yellow balls"
"chooses 7 balls"
P("3R & 4Y") =  (10C3)(7C4)/(17C7) = 120*35/19448 =  .216
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