Question

Which of the following cannot be a probability of an event ?

• A. 0.9
• B. 99%
• C. 0.5
• D. 1.25

Answer 1

The correct option is D 1.25

We know that the probability of happening of an event E is given by: $\frac{numberoffavourableoutcomes}{totalnumberofoutcomes}$

Since the number of favourable outcomes is always less than or equal to the total number of outcomes, the probability of happening of any event must be less than or equal to 1.