Two-way tables (AQA GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is a stratum in stratified sampling?
What is a stratum in stratified sampling?
A subgroup in a population
Why use two-way tables for sampling?
Why use two-way tables for sampling?
They divide population into distinct groups
How do you calculate the proportion of a stratum?
How do you calculate the proportion of a stratum?
Size of stratum divided by total size
What is the total population in Jan's study?
What is the total population in Jan's study?
11,270
What is the rounded sample size for under-25 males based on the data provided?
What is the rounded sample size for under-25 males based on the data provided?
9
What does the golden rule of sampling recommend?
What does the golden rule of sampling recommend?
Add 1 to the largest group
What is the final sample size for 25+ females?
What is the final sample size for 25+ females?
55
What does stratified sampling ensure?
What does stratified sampling ensure?
Proportional representation of strata
What is the first step in stratified sampling?
What is the first step in stratified sampling?
Identify your strata
What is the purpose of rounding sample sizes?
What is the purpose of rounding sample sizes?
To ensure whole individuals are sampled