Solve the Problem $P ( A ) = 0.3 , P ( B ) = 0.42$

Multiple Choice

Solve the problem.
-Suppose that $P ( A ) = 0.3 , P ( B ) = 0.42$ , and $P ( A \cup B ) = 0.61$ , find $P ( A \cap B )$ .

A) $0.11$
B) $0.126$
C) $0.72$
D) $0.5$