Find the product. Simplify your answer. (2s–2)(4s+3)
1 answer:
You might be interested in
The probability you're asked to find is
where
is the event that either event occurs (A, B, or both), and 
is the event that both events occur.
Recall that
which means
You're told that
, 
, and (if I'm reading the diagram correctly) 
.
So,
Another way of seeing this is that the event A consists of the regions "A not B" and "A and B". So the probability that "A not B" occurs is
Similarly, B consists of "B not A" and "A and B", so you have
So the probability that A or B, but not both, occur is
where
Recall that
which means
You're told that
So,
Another way of seeing this is that the event A consists of the regions "A not B" and "A and B". So the probability that "A not B" occurs is
Similarly, B consists of "B not A" and "A and B", so you have
So the probability that A or B, but not both, occur is