Mathematics, 01.03.2021 21:30 cecem58

A box contains 20 screws which are identical in size, but 12 of which are zinccoated and 8 of which are not. Two screws are selected at random, withoutreplacement. a. Find the probability that both are zinc coated. b. Find the probability that at least one is zinc coated.

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A box contains 20 screws which are identical in size, but 12 of which are zinccoated and 8 of which...

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