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  • If P (A) = 6 /11 , P (B) = 5 / 11 and P (A ∪ B) = 7 /11 find (ii) P (A| B)

Q. 5.     If  P(A)=\frac{6}{11},P(B)=\frac{5}{11}   and  P(A\cup B)=\frac{7}{11},  find

            (ii)  P(A\mid B)

Answers (1)

best_answer

It is given that -P(A)=\frac{6}{11},P(B)=\frac{5}{11}

p(A\cap B)=\frac{4}{11}

We know that:

P ( A | B ) = \frac{p(A\cap B)}{P(B)}

P ( A | B ) = \frac{\frac{4}{11}}{\frac{5}{11}}

P ( A | B ) = \frac{4}{5}

Posted by

seema garhwal

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