What is the probability of getting a head in one toss of a fair coin?
The number of all possible outcomes is 2, that is:
- First possible outcome: Head
- Second possible outcome: Tail
$\therefore$ Applying formula: \[ P_{\text{Head}} = \frac{\text{Number of Outcomes Favorable to a Head Turning Up}}{\text{Number of all Possible Outcomes}} \] \[ P_{\text{Head}} = \frac{1}{2} \] \[ P_{\text{Head}} = 50\% \leftarrow \text{answer} \]
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