Question

A fair coin is tossed once. Find the probability that head occurs.

Answer 1

A coin has $2$ faces: Head $\left(H\right)$ and Tail $\left(T\right)$

So total number of outcomes are $2$ $H$ or $T$

And we are interested to know the probability of occuring of head (So number of favorable outcome is 1)

Probability = number of favourable outcomes/ number of outcomes..

So $P\left(H\right)=\frac{1}{2}$