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Probability addition rule

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If two dice are thrown, what is the probability that the first die shows a 4 or that the total on the two dice is 8?

So far in calculations:

Event A = 4/36
Event B = 5/36

(4/36 + 5/36) - 1/36 = 8/36 or 2/9 which is not the correct answer.

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If two dice are thrown, what is the probability that the first die shows a 4 or that the total ...

Solution Summary

Probability based on addition rule is discussed in the answer.

$2.19