Question

Find the probability of getting head on both, if two coins are tossed.

Answer 1

The sample space when two coins are tossed is given by

$S=\left\{\right(H,H),(H,T),(T,H),(T,T\left)\right\}$

Total number of elements $=4$
Total number of likely outcomes $=(H,H)=1$
Hence, the required probability is
$P\left(A\right)=\frac{\text{No. of favourable events}}{\text{Total no. of events}}$
$P\left(A\right)=\frac{1}{4}$