# Level characteristics

Level characteristics attempt to capture a statistical set of values with one number. The statistics count for this purpose the so-called mean values. Medium values include: *arithmetic mean*, *geometric mean*, *harmonic mean*, *quadratic mean* and other mean values: *mode*, *median*.

### Arithmetic mean

the calculation of a simple arithmetic mean

### Geometric mean

the calculation of a geometric mean

### Mode

the calculation of a mode

### Median

the calculation of a median