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📊 Survey Cross-tab Analysis

Scenario: You ran a 30-person survey asking which programming language people prefer, broken down by experience level. Build a contingency table and a percentage breakdown.

Skills: crosstab, normalisation modes ("index", "columns", "all").

1 · Build the crosstab

Each row in responses is one survey reply.

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2 · Row percentages

Row-normalise to see what each cohort actually prefers.

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