In statistics, the jackknife (jackknife cross-validation) is a cross-validation technique and, therefore, a form of resampling. It is especially useful for bias and variance estimation.

The meaning of JACKKNIFE is a large strong pocketknife. How to use jackknife in a sentence.

Jul 23, 2025 · Jackknife resampling is a classic statistical technique used to estimate the bias and variance of a statistic, particularly when the sample size is small or the theoretical distribution of an …

Now we just use jackknife estimation to calculate the eight b(i) replications, take their mean to get b( ), and calculate the bias and standard errors using b, b(i), and b( ).

Jackknife is used in statistical inference to estimate the bias and standard error of a test statistic. The basic idea behind jackknife lies in systematically recomputing the statistic a large number of times, …

jackknife noun [C] (JUMP) a dive (= jump into water, with your head and arms going in first) in which the diver, while in the air, bends from the waist to touch the toes without bending the legs, and then …

resembling a jackknife, as in its shape, function, or manner of opening and folding

Apr 5, 2025 · Jackknife resampling is a statistical technique used to estimate the bias and variance of a statistical estimator and to improve its accuracy. It is a resampling method that systematically leaves …

Feb 23, 2021 · A jackknife is a clasp knife, one where the blade folds into the handle. Clasp knives have been around since antiquity, but the term jackknife dates to the mid seventeenth century and arose …

One of the earliest techniques to obtain reliable statistical estimators is the jackknife technique. It requires less computational power than more recent techniques.