The events A and B are independent. The probability that event A occurs is u and the probability that event B occurs is v. Which of the following is equal to the probability that exactly one of the events A and B occurs?	Choose the correct answer.
A) u − 2uv B) v − uv C) u + v − 2uv D) u + v − uv E) u + v
Probability of A occuring = u , Probability of A NOT occuring = 1-u   Probability of B occuring = v , Probability of B not occurring = 1-v   Probability of atleast of one of A and B occuring = 1-(1-u)(1-v) =u+v -uv   u + v − uv
<result>D</result>
The events A and B are independent. The probability that event A occurs is u and the probability that event B occurs is v. Which of the following is equal to the probability that exactly one of the events A and B occurs?