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May 25, 2013

# Homework Help: math

Posted by tk on Monday, May 10, 2010 at 12:31pm.

if two dice are rolled 360 times, approximately how many times should you expect a sum of 7

• math - Reiny, Monday, May 10, 2010 at 2:38pm

there are 36 ways for 2 dice to fall, of those 6 will add up to 7
16 25 34 43 52 62

so the prob of rolling a 7 is 6/36 = 1/6

so when rolling 360 times I would expect this to happen 1/6 of the time or 60 times

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