A box contains 25 parts, of which 3 are defective and 22 are nondefective. If 2 parts

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A box contains 25 parts, of which 3 are defective and 22 are nondefective. If 2 parts are selected without replacement, find the following probabilities:

a. P(both are defective)

b. P(exactly one is defective)

c. P(neither is defective)

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