Q. 43

# <span lang="EN-US

P(A) = 0.3 , P(AB) = 0.5 (Given)

Since, A and B are two independent events,

P(AB) = P(A) P(B)

P(AB) = 0.3 P(B) (1)

Also, according to the addition theorem of probability,

P(AB) = P(A) + P(B) – P(AB)

0.5 = 0.3 + P(B) – 0.3P(B) From (Given) & (1)

0.7P(B) = 0.2

P(B) = = (2)

Putting value of P(B) in equation (1) we get,

P(AB) = 0.3 = P(AB) = (3)

Now,  From (3) & (2) and (Given)   Rate this question :

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