For two events and ,

MATHEMATICS · Single correct · A Level · Mathematics · Probability · Probability

Problem

For two events

A

and

B

P(A)=0.45

P(B)=0.55

and

P(A\cup B)=0.80

. Find

P(A\cap B)

. (a) 0.25 (b) 0.31 (c) 0.20 (d) 0.10