A bag contains 5 white, 6 red and 4 green balls. One ball is drawn at random. What is the probability that the ball drawn is (i) green?(ii) white? (iii)non-red?
(i).
Total number of balls bag containing is: 5 white + 6 red + 4 green = 15 balls
Number of green balls = 4.
Probability P() = 
Probability of getting a Green ball P(G) = 
= 
(ii).
Total number of balls bag containing is: 5 white + 6 red + 4 green = 15 balls
Number of white balls = 5.
Probability P() = 
Probability of getting a white ball P(W) = 
= 
= 
(iii).
Total number of balls bag containing is: 5 white + 6 red + 4 green = 15 balls
Number of outcomes (No Red) = 5 + 4 = 9, that is 5 white balls + 4 Green balls.
Probability P() = 
Probability of getting a Green ball P(G) = 
=
= 
5