Deviation and Differ

noun

• A variation that deviates from the standard or norm.
  • usage: "the deviation from the mean"
  • synonyms: divergence, departure, difference
• The difference between an observed value and the expected value of a variable or function.
• The error of a compass due to local magnetic disturbances.
• Deviate behavior.
  • synonyms: deviance
• A turning aside (of your course or attention or concern. )
  • usage: "a diversion from the main highway"; "a digression into irrelevant details"; "a deflection from his goal"
  • synonyms: diversion, digression, deflection, deflexion, divagation

• (n.) 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.
• (n.) The state or result of having deviated; a transgression; an act of sin; an error; an offense.
• (n.) 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.

deviation is the measure of how widely the individual varies from the general population.

(DoD, NATO) The distance by which a point of impact or burst misses the target. See also circular error probable; delivery error; dispersion error; horizontal error.
(DoD, NATO) The angular difference between magnetic and compass headings.

verb

• Be different.
  • usage: "These two tests differ in only one respect"
• Be of different opinions.
  • usage: "I beg to differ"; "She disagrees with her husband on many questions"
  • synonyms: disagree, dissent, take issue

• (v.i.) To be or stand apart; to disagree; to be unlike; to be distinguished; -- with from.
• (v.i.) To have a difference, cause of variance or quarrel; to dispute; to contend.
• (v.t.) To cause to be different or unlike; to set at variance.
• (v.i.) To be of unlike or opposite opinion; to disagree in sentiment; -- often with from or with.