Q27Multiple choice
If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails is
- (A)> . 5
- (B).5
- (C)≤ .5
- (D)0
If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails is