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December 21, 2014

December 21, 2014

Posted by **Bec** on Friday, September 6, 2013 at 11:39pm.

- math probability -
**Graham**, Saturday, September 7, 2013 at 12:34amLet A denote the event that one specific die is a 6.

Let B denote the event that the other die is a 6.

P(A) = 1/6

P(B) = 1/6

Note that the events are independent.

.: P(A˄B)=P(A)P(B)

So we need to find: P(A˅B)

Use the exclusion principle:

P(A˅B) = P(A) + P(B) - P(A˄B)

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