Question

A bag contains a red ball, blue ball and an yellow ball. Kritika randomly takes out a ball. Find the probability that she takes out a red ball.

• A. $\frac{1}{3}$
• B. $\frac{2}{3}$
• C. 1
• D. $\frac{1}{2}$

Answer 1

The correct option is A $\frac{1}{3}$

Set of all possible outcomes = { Red, Blue, Yellow}
Total number of possible outcomes = 3.
Let R be the event that she takes out a Red ball.
Number of favourable outcomes = 1.
Probability of picking up a red ball $P\left(R\right)=\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}=\frac{1}{3}$