Question

A die is thrown then write the sample $S$ and number of sample points $n\left(S\right)$ and also write event $A$ of getting a perfect square on the upper face write $n\left(A\right)$

Answer 1

$S=\{1,2,3,4,5,6\}$
$n\left(S\right)=6$
$A=\{1,4\}$
$n\left(A\right)=2$