Question

a bag contains 7 red 5 blue and 3 green balls one ball is drawn at random from the bag find the probability that the ball drawn is: i) a red ball ii) a green ball iii) not a blue ball
​

Answer 1

Answer:

(i) possible outcomes =7+3+5=15

favorable outcomes =7

p(red ball) = 7/15

(ii) possible outcomes =15.

favorable outcomes =3

p(green ball) = 3/15=1/5

(iii) possible outcomes =15.

favorable outcomes =7+3=10.

p(not a blue ball) =10/15=2/3