Question 1
Suppose that for a certain experiment
P(
A) =
and
P(
B) =
, and events
A and
B are mutually exclusive. Find
P(
A ∪
B).
Question 2
Suppose that for a certain experiment
P(
A) = .8 and
P(
B) = .9. Use the Additive Rule to explain why the events
A and
B can not be mutually exclusive.