[Mathematics | Probability | Statistics | Distribution] The variance of a set of numbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative number. The higher the variance the more spread out the values in the data set are.
Variance of a binomial experiment is equal to the amount of trials multiplied by the success rate and failure rate.
Variables:
`n` = Number of Trials
`p` = Success Rate
`q` = Failure Rate (Calculated as 1 - `p`)
Equation:
`n*p*q`