If $A = \{x \mid 0 < x < 1\}$ and $B = \{x \mid \frac{1}{4} \leq x \leq 3\}$ then find $A \cap B$.
If two events AAA and BBB in a sample space are independent then state the formula for P(A∪B)P(A \cup B)P(A∪B).
