SOLUTION: I'm struggling with this question regarding binomial probability. Can you please help me?
A shipment of 24 computer keyboards is rejected if 4 are checked fir defects and at le
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Question 372798: I'm struggling with this question regarding binomial probability. Can you please help me?
A shipment of 24 computer keyboards is rejected if 4 are checked fir defects and at least 1 is found to be defective. Find the probability that the shipment will be returned if there are actually 6 defective keyboards.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
ways of selecting 4 out of 24 ___ 24C4
ways of selecting 4 good out of 18 good ___ 18C4
probability of none bad ___ (18C4) / (24C4)
probability of at least one bad (return) ___ 1 - [(18C4) / (24C4)]
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