SOLUTION: A Barrel contains 12 yellow balls and 10 red balls. You are drawing 7 balls from the barrel without replacement. What is the probability of drawing 3 yellow balls and 4 red balls,

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Question 853105: A Barrel contains 12 yellow balls and 10 red balls. You are drawing 7 balls from the barrel without replacement. What is the probability of drawing 3 yellow balls and 4 red balls, in any order?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
A Barrel contains +highlight_green%2822%29 balls: 12 yellow and 10 red
P=%2812C3%29%2810C4%29%2F%2822C7%29=+220%2A210%2F170544+=+.2709
where: nCx+=+%28n%21%29%2Fx%21%28n+-+x%29%21%29+=+220%2A
Ex: 12C3 =