Cross-classification of a population by two or three attributes; fill the contingency table

CAT has tested this idea 35 times across 8 papers, from 2017 to 2023. Solve one, and the others are the same method with different numbers or wording, which is why repeated concepts are the most efficient thing to practise.

Question	What it asks	Answer
CAT 2022 Slot 2 · DILR Q11	320 products: cosmetic/nutrition, foreign/domestic, FDA/EU approvals	40
CAT 2022 Slot 2 · DILR Q12	320 products: cosmetic/nutrition, foreign/domestic, FDA/EU approvals	D
CAT 2022 Slot 2 · DILR Q13	320 products: cosmetic/nutrition, foreign/domestic, FDA/EU approvals	A
CAT 2022 Slot 2 · DILR Q14	320 products: cosmetic/nutrition, foreign/domestic, FDA/EU approvals	A
CAT 2022 Slot 2 · DILR Q15	320 products: cosmetic/nutrition, foreign/domestic, FDA/EU approvals	50
CAT 2018 Slot 2 · DILR Q17	140 tickets by type and visitor age group	A
CAT 2018 Slot 2 · DILR Q18	140 tickets by type and visitor age group	0
CAT 2018 Slot 2 · DILR Q19	140 tickets by type and visitor age group	3
CAT 2018 Slot 2 · DILR Q20	140 tickets by type and visitor age group	C
CAT 2023 Slot 3 · DILR Q11	AC sales by dealer, window/split, inverter/non-inverter	14
CAT 2023 Slot 3 · DILR Q12	AC sales by dealer, window/split, inverter/non-inverter	C
CAT 2023 Slot 3 · DILR Q13	AC sales by dealer, window/split, inverter/non-inverter	33
CAT 2023 Slot 3 · DILR Q14	AC sales by dealer, window/split, inverter/non-inverter	B
CAT 2023 Slot 3 · DILR Q15	AC sales by dealer, window/split, inverter/non-inverter	B
CAT 2017 Slot 2 · DILR Q21	800 pizzas by party, crust type and cheese	B
CAT 2017 Slot 2 · DILR Q22	800 pizzas by party, crust type and cheese	C
CAT 2017 Slot 2 · DILR Q23	800 pizzas by party, crust type and cheese	B
CAT 2017 Slot 2 · DILR Q24	800 pizzas by party, crust type and cheese	A
CAT 2019 Slot 2 · DILR Q9	500 students: support for proposals A/B by candidate preference	64
CAT 2019 Slot 2 · DILR Q10	500 students: support for proposals A/B by candidate preference	84
CAT 2019 Slot 2 · DILR Q11	500 students: support for proposals A/B by candidate preference	B
CAT 2019 Slot 2 · DILR Q12	500 students: support for proposals A/B by candidate preference	D
CAT 2017 Slot 1 · DILR Q17	30000 kids by region, school type, mother's schooling	A
CAT 2017 Slot 1 · DILR Q18	30000 kids by region, school type, mother's schooling	A
CAT 2017 Slot 1 · DILR Q19	30000 kids by region, school type, mother's schooling	A
CAT 2017 Slot 1 · DILR Q20	30000 kids by region, school type, mother's schooling	A
CAT 2022 Slot 3 · DILR Q1	CS and non-CS students in AI/ML courses by grade	B
CAT 2022 Slot 3 · DILR Q2	CS and non-CS students in AI/ML courses by grade	12
CAT 2022 Slot 3 · DILR Q3	CS and non-CS students in AI/ML courses by grade	27
CAT 2022 Slot 3 · DILR Q4	CS and non-CS students in AI/ML courses by grade	D
CAT 2022 Slot 3 · DILR Q5	CS and non-CS students in AI/ML courses by grade	D
CAT 2018 Slot 1 · DILR Q29	24 people in three committees by bureaucrat/educationalist/politician	B
CAT 2018 Slot 1 · DILR Q30	24 people in three committees by bureaucrat/educationalist/politician	4
CAT 2018 Slot 1 · DILR Q31	24 people in three committees by bureaucrat/educationalist/politician	3
CAT 2018 Slot 1 · DILR Q32	24 people in three committees by bureaucrat/educationalist/politician	C

Part of Venn & Set Puzzles (60 questions since 2017).