Question: P ( A ) = 0 . 5 2 , P ( B ) = 0 . 3 1 and begin mathsize 2 0 px

P(A)=0.52, P(B)=0.31 and begin mathsize 20px style text P(A\cap B)=0.23 end text end style
Determine begin mathsize 20px style text P( end text stack A union B right parenthesis with bar on top end style

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