Answer:
Given
that P(A) = 0.3 , P(B) = 0.4 and A and B independent events.
(i) = P(A)
P(B) = 0.3 × 0.4 = 0.12
(ii) = P(A) +
P(B) ? P(A B)
=
P(A) + P(B) ? P(A) P(B) [by (i)]
=
0.3 + 0.4 ? 0.3 × 0.4
=
0.70 ? 0.12 = 0.58
(i) P(A/B) =
P(A) = 0.3
(ii) P(B/A) = P(B) =
0.4
[ A and B
are independent events]
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