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20-12-2018
Mathematics

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A bag contains 7 good apples and 3 bad apples. Nick takes two apples at random from the box, WITHOUT replacement.

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20-12-2018

the first pick will be a 3 in 10ths chance that it is a bad apple, if it is a bad apple the second pick will be a 2 in 9ths chance, if it was a good apple the second would be a 3 in 9ths chance of a bad apple

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