Question

A box contains 30 balls, out of which 15 are red and 15 are blue. A ball is picked at random from the bag. Find:
i. The probability of picking a red ball
ii. The probability of picking a blue ball

• A. Impossible events
• B. None of the above
• C. Certain events
• D. Equally likely events

Answer 1

The correct option is D Equally likely events

We know:

$\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Numner of possible outcomes}}$

$P\left(Redball\right)=P\left(Blueball\right)=\frac{15}{30}=\frac{1}{2}$

Hence, the events are equally probable.