# Probability Formulas

Probability is used in our day to day life, for example, when we toss a coin, we cannot anticipate whether it will be head or tail. That means we are uncertain about the event. Therefore, probability is how an event is likely to occur. The ratio of number of favorable outcome to the total number of outcome is known as

**Probability**.**The basic probability formula is given as,**

Probability of an event = $\frac{number \ of \ favorable \ outcome}{total \ number \ of \ outcome}$.