On the wiki https://wiki.geogebra.org/e... could you update,
ChiSquaredTest( <Matrix>, <Matrix> )
Performs a chi-squared test that compares the given matrix of observed counts against the given matrix of expected counts.
to
ChiSquaredTest( <Observed Matrix>, <Expected Matrix> )
Performs a chi-squared test that compares the given matrix of observed counts against the given matrix of expected counts.
Or at least
ChiSquaredTest( <Matrix>, <Matrix> )
Performs a chi-squared test that compares the first given matrix of observed counts against the second given matrix of expected counts.
Although I would prefer the first fix, so when my students use the ChiSquaredTest( command they will automatically get a reminder of which order to place them.
Same for
ChiSquaredTest( <Observed List>, <Expected List> )
I like this idea 
Thanks, good idea!
https://wiki.geogebra.org/e...
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