Find probability that both bulbs are forty watt bulbs


A box in a certain supply room contains four 40 w light bulbs, five 60-W bulbs, and six 75-W bulbs. If two are randomly selected from the box and at least one of them is found to be rated 75-W.what is the probability that both of them are 40- W bulbs?

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Basic Statistics: Find probability that both bulbs are forty watt bulbs
Reference No:- TGS097276

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