Chi Square Test Calculator

Observed Numbers (y):
(Comma separated or in separated lines)
Expected Numbers (x):
(Comma separated or in separated lines)
   
Chi Square (X2):    

Chi Square Test Formula

X2 = ∑((y-x)2/x)

Where:

y: Observed numbers

x: Expected numbers

X2:Chi Square

A chi-squared test is any statistical hypothesis test also called as chi-square test or χ² test.

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