Porisma

A hint to get started

Subtract Venn regions before using independence

In a certain sample space, A and B are independent, P(A∪B)=4/9P(A\cup B)=4/9 and P(A∩B′)=5/18P(A\cap B')=5/18. Calculate (i) P(B), (ii) P(A), (iii) P(A∪B′)P(A\cup B').

CJC · Lecture · Example 5

Name the events, identify the sample space, and state which outcomes or conditions are being counted.

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