Question

Refer to the previous exercise.
Define event D as rolling an odd sum with two dice.
a. B denotes a sum of 7 on the two dice. Find P(B and D). When an event B is contained within an event D, as here, explain why P (B and D) = P (B).
b. Find P(B or D). When an event B is contained within an event D, explain why P (B or D) = P (D).


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  • CreatedSeptember 11, 2015
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