Question

A die is thrown. Write the sample space. If $B$ is the event of getting an even number, write the event $B$ using set notation.

Answer 1

A die is throws.
$\therefore$ Sample space $\left(S\right)=\{1,2,3,4,6\}$
$\therefore$ $n\left(S\right)=6$
Let $B$ is the event that the number is even.
$B=\{2,4,6\}$
$\therefore$ $n\left(B\right)=3$