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by ruplun » Wed Jun 23, 2010 7:43 am
A bowl contains red and green chips and no chips of any other color. If two chips are drawn from the basket at random without replacement, what is the probability that both chips will be green?

1. 20% of all chips in the basket are green.
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by amising6 » Wed Jun 23, 2010 7:59 am
ruplun wrote:A bowl contains red and green chips and no chips of any other color. If two chips are drawn from the basket at random without replacement, what is the probability that both chips will be green?

1. 20% of all chips in the basket are green.
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by hardik.jadeja » Wed Jun 23, 2010 8:11 am
Lets assume that there are 100 chips - 20 green and 80 red

Probability of picking up two green chips = (20/100)*(19/99) = 19/495
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