IN a production run of 300 units there are exactly 20 defective items and 280 good items
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Question:
IN a production run of 300 units there are exactly 20 defective items and 280 good items
(a) if two items are ramdonly sampled without replacement, what is the probability that both are good ?
(b) if two items are randomly sampled without replacement what is the probability that the first is good but the second is defective
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