A bag contains 4 white and 5 blue balls. They are mixed thoroughly and one
ball is drawn at random. What is the probability of getting (i) a white ball? (ii)
A blue ball?
i. We know that the bag containing the total balls = 4white + 5blue = 9balls
White balls = 4
By using the formula,
Probability p () = number of favorable outcomes/ total number of outcomes
∴ Probability of getting a white ball p (W) = number of white balls/total number of balls
=4/9
ii. We know that the bag containing the total balls = 4white + 5blue = 9balls
Blue balls = 5
By using the formula,
Probability p () = number of favorable outcomes/ total number of outcomes
∴ Probability of getting a blue ball p (B) = number of blue balls/total number of balls
=5/9
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