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Survival Cross-Tab: Class × Sex
Build a cross-tabulation of survival by passenger class AND sex — 6 combinations (3 classes × 2 sexes). For each combination show: pclass, sex, passengers, survivors, survival_rate (%, 1 dec), avg_fare (2 dec). Sort by pclass, then sex. This multi-dimension breakdown is a classic data analyst question.
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Schema
passengers
| passenger_id | survived | pclass | name | sex | age | sibsp | parch | fare | embarked |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 3 | Braund, Mr. Owen Harris | male | 22 | 1 | 0 | 7.25 | S |
| 2 | 1 | 1 | Cumings, Mrs. John Bradley | female | 38 | 1 | 0 | 71.28 | C |
| 3 | 1 | 3 | Heikkinen, Miss. Laina | female | 26 | 0 | 0 | 7.93 | S |
Expected output: 6 rows showing survival rates across class-sex combinations
Hint
Concepts
SELECT GROUP BY Aggregation ORDER BY
Practise the topic: SQL practice questions · GROUP BY exercises
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