Q16Multiple choice
A sample space consists of 9 elementary outcomes e1, e2, ..., e9 whose probabilities P(e1) = P(e2) = .08, P(e3) = P(e4) = P(e5) = .1 P(e6) = P(e7) = .2, P(e8) = P(e9) = .07 SupposeA = {e1, e5, e8}, B = {e2, e5, e8, e9}
- (a)Calculate P (A), P
- (B), and P (A ∩ B) (b) Using the addition law of probability, calculate P (A ∪ B)
- (c)List the composition of the event A ∪ B, and calculate P (A ∪ B) by adding the probabilities of the elementary outcomes.
- (d)Calculate P ( B ) from P (B), also calculate P ( B ) directly from the elementary outcomes of B