# Variability characteristics

Variability characteristics determine how each element of the statistical set differs. Variance variables include: range, mean deviation, standard deviation, variance, standard deviation, variance coefficient.
*range*, *average deviation*, * relative average deviation*, *variance*, *standard deviation*, *coefficient of variation*.

### Range

the calculation of a range

### Average deviation

the calculation of a average deviation

### Variance

the calculation of a variance

### Standard deviation

the calculation of a standard deviation