Fort Fun Indiana
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- Mar 10, 2017
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- #161
Yep!If I roll two dice in a cup and look at them and tell you at least one is a 6 (thus "giving" you the information that one die shows 6), what are the odds the dice total 7? You have to count permutations.
The odds are 11:2. Do you know why?
There are 36 different permutations of 2 six sided dice being rolled. Specifying that at least 1 is a 6 eliminates 25 of them. Of the remaining 11 permutations, 2 permutations (specifically 1 + 6 and 6 + 1), will equal 7.