Daily Practice

Foundation

9th August 2026

5 questions · Foundation tier · 282 questions in this band

1
Sampling Methods
A researcher wants a sample of 50 from a population of 500 using systematic sampling, with a random start of 4. List the first three people selected.
2
Collecting Data
State one advantage secondary data has over primary data for a project on rainfall over the last 50 years.
3
Comparing Data Sets
Data set X has a range of 12 and data set Y has a range of 5. Which data set is more consistent?
4
Combined Mean
Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
5
Designing Questionnaires and Surveys
What is wrong with the question 'Do you not think school lunches are too expensive?'

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