GOODMAN
An urn contains 8 white, 6 blue, and 9 red balls. How many ways can 6 balls be selected to meet each condition?
A) Three balls are blue, 2 are white, and 1 is red.
B) Two are blue, and 4 are red.
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DHASHNI
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use random variables
imranmeah91
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paging @satellite73
GOODMAN
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lol, the other site thing is confusing..
anonymous
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hold on one second
anonymous
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ok 3 blue 2 white 1 red
\[\dbinom{6}{3}\dbinom{8}{2}\dbinom{9}{1}\] is it clear how to compute these?
GOODMAN
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Yes. Now?
GOODMAN
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Wait..so you just divide then multiply? Which results in 72?