Skip to main content
Select Source:

jackknife

jack·knife / ˈjakˌnīf/ • n. (pl. -knives) 1. a knife with a folding blade. 2. a dive in which the body is first bent at the waist and then straightened. 3. Statistics a method of assessing the variability of data by repeating a calculation on the sets of data obtained by removing one value from the complete set. • v. (-knifed, -knif·ing) [tr.] move (one's body) into a bent or doubled-up position: the Major jackknifed his thin body at the waist | [intr.] she jackknifed into a sitting position. ∎  [intr.] (of an articulated vehicle) bend into a V-shape in an uncontrolled skidding movement. ∎  [intr.] (of a diver) perform a jackknife.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"jackknife." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"jackknife." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/jackknife-0

"jackknife." The Oxford Pocket Dictionary of Current English. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/jackknife-0

jackknife

jackknife A statistical technique in which, given a data set with n observations, the analysis is recalculated n times omitting each observation in turn (removed with a “jackknife”). The mean and variance of the estimated parameters in the model may be compared with those obtained from the full set. The method is related to statistical bootstrap estimation.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"jackknife." A Dictionary of Computing. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"jackknife." A Dictionary of Computing. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/jackknife

"jackknife." A Dictionary of Computing. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/computing/dictionaries-thesauruses-pictures-and-press-releases/jackknife

jackknife

jackknifefife, Fyfe, knife, life, pro-life, rife, still-life, strife, wife •shelf-life • midlife • wildlife •nightlife • lowlife • afterlife •jackknife • penknife • paperknife •spaewife • alewife • midwife •fishwife • housewife • goodwife

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"jackknife." Oxford Dictionary of Rhymes. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"jackknife." Oxford Dictionary of Rhymes. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/jackknife

"jackknife." Oxford Dictionary of Rhymes. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/jackknife