Question

A dice is thrown once. Find the probability of getting $3$ or $4$.

Answer 1

If a dice is thrown once then its sample space contains $6$ points and they are $\{1,2,3,4,5,6\}$.

Among them if the outcome is to be either $3$ or $4$ then we have only two choice.

So the probability of getting either $3$ or $4$ is $=\frac{2}{6}=\frac{1}{3}$.