For the events of $A$ and $B$, probabilites are $\Bbb P(A) = 3/11$ and $\Bbb P(B) = 4/11$. Define the $\Bbb P(A \cap B )$ if:
a) $\Bbb P(A \cup B) = 6/11$.
b) events are indenpendent
I have done a task, and it's following
$$\Bbb P(A \cup B) = \Bbb P(A) + \Bbb P(B) - \Bbb P(A \cap B ) = 1/11\;.$$
However I don't know how to solve b task. I need your help.
Thanks in advance.