Three persons P, Q and R independently try to hit atarget. If the probabilities of their hitting the target are8 respectively, then the probability that the53 and respectitarget is hit by P or Q but not by R is :216496439(3) 15(4) 64

Three persons P, Q and R independently try to hit atarget. If the prob

1.	Three persons P, Q and R independently try to hit atarget. If the probabilities of their hitting the target are8 respectively, then the probability that the53 and respectitarget is hit by P or Q but not by R is :216496439(3) 15(4) 64
Answer» Three persons P, Q and R independently try to hit a target. If the probabilities of their hitting the target are 8 respectively, then the probability that the 5 3 and respecti target is hit by P or Q but not by R is : 21 64 9 64 39 (3) 15 (4) 64