probability question

Statistics
Tutor: None Selected Time limit: 1 Day

Suppose that A and B are independent events such that P(A)= 0.2 and P(B')= 0.10  .

Find P(A U B) and P(A n B) .

Feb 15th, 2015

If independent events then P(AnB) = P(A)*P(B) = (0.2)(1 - 0.1) = (0.2)(0.9) = 0.18

and P(AuB) = P(A) + P(B) - P(AnB) = 0.2 + 0.9 - 0.18 = 0.92

Feb 15th, 2015

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