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posted by Liz on Friday, December 3, 2010 at 12:19am.

Find the (theoretical) probability of a given event, assuming that the dice are distinguishable and fair, and that what is observed are numbers uppermost. Two dice are rolled; the numbers add to 7. 1

The probability of rolling 7 with two dice is 1/6. Six of 36 possible equally likely outcomes yield a sum of 7.

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If a pair of dice are rolled, the probability that the sum of the numbers of dots appearing is 5 is

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