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January 30, 2015

January 30, 2015

Posted by **rick** on Thursday, April 25, 2013 at 8:57pm.

- math-high school -
**Damon**, Thursday, April 25, 2013 at 9:13pmAs far as I know the probability of it happening + the probability of it not happening sum to 1. Therefore I believe the answer is 3/5.

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