Jaribio la χ² : Tofauti kati ya masahihisho

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Mstari 1:
[[Picha:Chi-square_pdf.svg|link=https://sw.wikipedia.org/wiki/Picha:Chi-square_pdf.svg|thumb|χ{{Dead link|date=January 2021 |bot=InternetArchiveBot |fix-attempted=yes }}<sup>2</sup> kwa k=1, k=2, k=3, etc.]]
Katika [[takwimu]], '''Jaribio la χ²''' (kwa [[Kiingereza]]: χ² test) ni jaribio la takwimu ambalo linaweza kujaribu upweke kati ya uwiano mbili.