Question

The probability of certain (sure) event is ___ .

• A. $\frac{1}{2}$
• B. $\frac{1}{3}$
• C. $\frac{1}{6}$
• D. $1$

Answer 1

The correct option is D

$1$

The probability of a certain event is always 1 as the number of possible outcomes is always equal to the number of favourable outcomes for a certain event. So, the correct option is D.