21. If P(A)=1/4, P(B) =2/5 and P(AUB)=1/2 find P(AU B°), where A and B are two non mutually exclusive events connected with a random experiment E and A° is the complement event of A.
21. If P(A)=1/4, P(B) =2/5 and P(AUB)=1/2 find P(AU B°), where A and B are two non mutually exclusive events connected with a random experiment E and A° is the complement event of A.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.7: Probability And Odds
Problem 2E
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