Question: Suppose that 6 transistors are drawn at random from a box containing 18 good transistors and 2 defective transistors. What is the probability that (a)

Suppose that 6 transistors are drawn at random from a box containing 18 good transistors and 2 defective transistors. What is the probability that
(a) All 6 of the transistors are good?
(b) Exactly 4 of the transistors are good?
(c) Exactly 2 of the transistors are good?

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