Grade 12 · Statistics

Chi-square tests

100 problems in this skill, each with a solver-verified answer key. Answers are checked the moment you submit — with a hint if you want one and a worked solution afterwards.

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Warm-up
A chi-square test of independence is conducted using a two-way table with $r = 3$ rows and $c = 6$ columns of categories. Find the degrees of freedom for the chi-square test statistic.
Warm-up
A chi-square test of independence is conducted using a two-way table with $r = 3$ rows and $c = 4$ columns of categories. Find the degrees of freedom for the chi-square test statistic.
Warm-up
A chi-square test of independence is conducted using a two-way table with $r = 5$ rows and $c = 6$ columns of categories. Find the degrees of freedom for the chi-square test statistic.

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