laurenlance98 laurenlance98

31-05-2017
Mathematics

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A box contains 16 balls numbered 1 through 16. Two balls are drawn in succession without replacement. If the second ball has the number 4 on it, what is the probability that the first ball had a smaller number on it? An even number on it?

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Lucathehelper Lucathehelper

31-05-2017

I'm not sure but smaller number = 1/5
Even number = 7/15

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