7 You are given that \(P ( A ) = 0.6 , P ( B ) = 0.5\) and \(P ( A \cup B ) ^ { \prime } = 0.2\).
- Find \(\mathrm { P } ( \mathrm { A } \cap \mathrm { B } )\).
- Find \(\mathrm { P } ( \mathrm { A } \mid \mathrm { B } )\).
- State, with a reason, whether \(A\) and \(B\) are independent.