IB skill practice

Use chi-square tests for independence

Calculate expected counts, chi-square contributions, degrees of freedom, and contextual conclusions.

Paper 1, Paper 2 5 marks Difficulty 4

Use chi-square tests for independence - exam scenario

Case V8. In this AI HL exam-style task, compare observed and expected frequencies and identify the requested test statistic component. Enter the requested numerical value and choose the interpretation that matches the context.

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