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DochEvi [55]
4 years ago
7

box contains 15 items,4 of which are defective and 11 are good. Two items are selected. What is probability that the first is go

od and the second defective?
Mathematics
1 answer:
allsm [11]4 years ago
3 0
The probability of the first item being good is 11/15.
Since we have taken 1 item out the remaining total is now 14, so the probability of getting a defective item is now 4/14.
Now you multiply the probabilities together to get (11/15)(2/7)=22/105
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