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July 31, 2014

July 31, 2014

Posted by **Marie** on Monday, July 11, 2011 at 11:06pm.

- Probability -
**Reiny**, Monday, July 11, 2011 at 11:25pmless than 7 :

15 14 13 12 11

24 23 22 21

33 32 31

42 41

51

there are 15 of these

sum is even : 18 cases

but that includes 9 cases from the above less than 7 count.

total count = 18 + 15-9 = 24

prob(less than seven OR even sum) = 24/36 = 2/3

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