## DEVIATION

### Deviation

In mathematics and statistics, deviation is a measure of difference between the observed value of a variable and some other value, often that variable's mean. The sign of the deviation, reports the direction of that difference . The magnitude of the value indicates the size of the difference.

The above text is a snippet from Wikipedia: Deviation (statistics)

### deviation

#### Noun

1. The act of deviating; a wandering from the way; variation from the common way, from an established rule, etc.; departure, as from the right course or the path of duty.
2. The state or result of having deviated; a transgression; an act of sin; an error; an offense.
3. The voluntary and unnecessary departure of a ship from, or delay in, the regular and usual course of the specific voyage insured, thus releasing the underwriters from their responsibility.
4. The shortest distance between the center of the target and the point where a projectile hits or bursts.
5. For interval variables and ratio variables, a measure of difference between the observed value and the mean.
6. The signed difference between a value and its reference value.

The above text is a snippet from Wiktionary: deviation