Daily Practice

Foundation

15th May 2025

5 questions · Foundation tier · 282 questions in this band

1
Collecting Data
State one advantage secondary data has over primary data for a project on rainfall over the last 50 years.
2
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?
3
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.
4
Designing Questionnaires and Surveys
What is wrong with the question 'Do you not think school lunches are too expensive?'
5
Experimental Design
What is a control group used for?

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