Events and are such that

MATHEMATICS · Single correct · GCSE · Mathematics · Probability · Probability

Problem

Events

A

and

B

are such that

P(A)=0.42

,

P(B)=0.38

and

P(A\cap B)=0.15

. Find

P(A\cup B)

. (a) 0.80 (b) 0.64 (c) 0.95 (d) 0.65

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