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Fifteen batteries are tested to determine whether the battery life is as long as advertised

Fifteen batteries are tested to determine whether the battery life is as long as advertised . Four batteries fail the test. From all fifteen batteries, two are selected at random without replacement .

Find the probability for each of the following scenarios.

(a) both batteries passed the test

(b) both batteries failed the test

(C) at least one battery failed the test

Apr 25 2020 View more View Less

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