We don't have synonyms for jacknife yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are jackknife, jacksnipe and jackie.
(n) :
Misspelling of jackknife. [(statistics) A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.]
(n) :
Misspelling of jackknife. [(statistics) A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.]