Question: Three screws are drawn at random from a lot of 100 screws, 10 of which are defective. Find the probability of the event that all

Three screws are drawn at random from a lot of 100 screws, 10 of which are defective. Find the probability of the event that all 3 screws drawn are nondefective, assuming that we draw

(a) With replacement

(b) Without replacement.

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