TS ICET 23 May 2019 Shift 1 Paper

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Question : 150 of 200

Marks: +1, -0

If A and B are two events in a random experiment with P (A) =

3/8

, P (B) =

5/8

and P (A ∩ B) =

1/4

, then P (A ∪ B) =

$1/4$
$3/4$
$1/2$
$3/5$

Solution:

P (A U B) = P (A) + P (B) – P (A ∩ B)

=\;{3}/{8}+\;{5}/{8}-\;{1}/{4}

=\;{6}/{8}=\;{3}/{4}

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