(Answered) In a shipment of 12 room air conditioners there are 3 with

Statistics

In a shipment of 12 room air conditioners, there are 3 with defective thermostats. Three air conditioners will be selected at random and inspected one after another. Find the probability that:

(a) All three are good
(b) The first 2 are good and the third defective
(c) Two are good and one defective

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