Question

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

Answer 1

A die is thrown
$\therefore$ $S=\{1,2,3,4,5,6\}$
$\therefore$ $n\left(S\right)=6$
Let $P$ is the event of getting an odd number.
$\therefore$ $P=\{1,3,5\}$
$\therefore$ $n\left(P\right)=3$