Fifteen microprocessors are randomly selected from a lot of 750 microprocessors among which 30 are defective.

A. Find the probability of obtaining at most 6 defective microprocessors.

B. Find the probability of obtaining at least 8 defective microprocessors.

c. Find the probability of obtaining exactly 7 defective microprocessors.

A. Find the probability of obtaining at most 6 defective microprocessors.

B. Find the probability of obtaining at least 8 defective microprocessors.

c. Find the probability of obtaining exactly 7 defective microprocessors.

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