1. When a pair of balanced dice is rolled. Let A = {the sum of the...

1. When a pair of balanced dice is rolled. Let A = {the sum of the dice is 10}, B = {doubles are rolled}. Find P(A), P(B).

2. Four couples are randomly sat in a row. How many different ways possible if

(a) no restriction; (b) all men have to sit together and all women have to sit together; (c) one of the couples have to sit together.

3.Two events A and B are investigated. P(A) = 0.35, P(B) = 0.72, the percent of chance that at least one of the event A or B occur is 90%. What is the probability that only one of the events happens

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milcah answered 10 months ago

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