Question

A dice is rolled once. Find the probability of getting a number greater than $2$

Answer 1

In rolling a dice, the sample space $S=\{1,2,3,4,5,6\}\therefore n\left(S\right)=6$
Let $C$ be the event of getting a number greater than $2$.
$C=\{3,4,5,6\}\therefore n\left(C\right)=4$
$\therefore P\left(C\right)=\frac{n\left(C\right)}{n\left(S\right)}=\frac{4}{6}$