SOLUTION: a box consists of 12 light bulbs, of which 3 are defective. If you select 2 at random, without replacement, find the probability that none of the light bulbs are defective
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Question 685654: a box consists of 12 light bulbs, of which 3 are defective. If you select 2 at random, without replacement, find the probability that none of the light bulbs are defective Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! a box consists of 12 light bulbs, of which 3 are defective. If you select 2 at random, without replacement, find the probability that none of the light bulbs are defective
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Note: # of defective = 3 ; # not-defective = 9
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P(none of 2 are defective) = 9C2/12C2 = 36/66 = 6/11
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Cheers,
Stan H.
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