Question

Which of the following could be the probability of an event?

• A.
  $\frac{3}{2}$
• B. -5
• C. $\frac{8}{7}$
• D. 1

Answer 1

The correct option is D 1

Probability of an event E, P(E)
$=\frac{\text{favorable number of outcomes}}{\text{total number of outcomes}}$
As total no. of outcomes are always greater than or equal to the favorable no. of outcomes.
So, probability of an event ranges from 0 to 1.
$\therefore$ 1 is the right answer.