If P (A) = 7/13, P (B) =9/13 and P (A ∩ B) = 4/13, find p (A/B).

1.	If P (A) = 7/13, P (B) =9/13 and P (A ∩ B) = 4/13, find p (A/B).
Answer» We have, \(P(\cfrac{A}{B})=\cfrac{P(A\cap B)}{P(B)}\) From the given data, P(A ∩ B) = \(\cfrac4{13}\) And P(B) = \(\cfrac9{13}\) Hence, P(\(\cfrac{A}{B}=\cfrac{\frac{4}{13}}{\frac{9}{13}}\)) = \(\cfrac49\)

Answer»

We have, \(P(\cfrac{A}{B})=\cfrac{P(A\cap B)}{P(B)}\)

From the given data, P(A ∩ B) = \(\cfrac4{13}\)

And P(B) = \(\cfrac9{13}\)

Hence, P(\(\cfrac{A}{B}=\cfrac{\frac{4}{13}}{\frac{9}{13}}\))

= \(\cfrac49\)

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If P (A) = 7/13, P (B) =9/13 and P (A ∩ B) = 4/13, find p (A/B).

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