Apr 8, 2026 · The meaning of DEVIATION is an act or instance of deviating. How to use deviation in a sentence.

The deviation of a value of x is the difference between it and the mean of the sample. Each deviation is then squared.

Deviation means how far from the normal. The Standard Deviation is a measure of how spread out numbers are. Its symbol is (the greek letter sigma).

Divergence from an accepted idea, policy, or norm of behavior: "Freud, as the leader of a powerful new movement, could not bear much deviation from his own central ideas" (Joseph Epstein).

The sign of the deviation reports the direction of that difference: the deviation is positive when the observed value exceeds the reference value. The absolute value of the deviation indicates the size …

Definition of deviation noun from the Oxford Advanced Learner's Dictionary. [uncountable, countable] deviation (from something) the act of moving away from what most people consider normal or …

Anything that varies from the accepted norm or standard is called a deviation. It is common in math and science, but it can refer to anything that differs from the expected.

The deviation is a measure of the difference between the practical value of a variable and some other value, frequently the variable's mean.

Deviation means doing something that is different from what people consider to be normal or acceptable. Deviation from the norm is not tolerated.

Having juice instead of coffee was a deviation from his usual routine. The pattern's deviation from the norm is significant. The book discusses sexual deviation [= deviance] in serial killers.