If the probability that the Detroit Lions win the Super Bowl is 1/20 and the probability that the Detroit Tigers win the World Series is 1/6, what is the probability that either the Bears win the Super Bowl or the Cub win the World Series (but not both)?  Pick one:
A) 1/2	B) 2/7	C) 1/3	D) 1/4	E) 1/5
19/20*1/6 + 1/20*5/6 = 24/120 = 1/5   The answer is 1/5.
<result>E</result>
If the probability that the Detroit Lions win the Super Bowl is 1/20 and the probability that the Detroit Tigers win the World Series is 1/6, what is the probability that either the Bears win the Super Bowl or the Cub win the World Series (but not both)?