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Statement of a problem № m662

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A lot of 140 semiconductor chips is inspected by choosing a sample of five chips. Assume 10 of the chips do not conform to customer requirements. (a) How many different samples are possible? (b) How many samples of five contain exactly one nonconforming chip? (c) How many samples of five contain at least one nonconforming chip?

Solution:
A lot of 140 semiconductor chips is inspected by choosing a sample of five chips

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