Daily Practice

Foundation

20th January 2025

5 questions · Foundation tier · 282 questions in this band

1
Estimating from Samples (Foundation)
A sample of 25 students from a school of 500 found that 5 walk to school. Estimate how many of all 500 students walk to school.
2
Spreadsheets and ICT (Foundation)
A column of 8 test scores is in cells D2 to D9. Give the formula for the mean score.
3
Stratified Sampling (Foundation)
A researcher wants a stratified sample of 30 from a population of 300 split into three regions: North (90 people), South (150 people) and East (60 people). She actually samples 9 from the North, 14 from the South and 7 from the East. Show whether her sample is correctly stratified, stating the correct numbers if not.
4
Pilot Surveys (Foundation)
What is a pilot survey?
5
Recognising Misleading Graphs (Foundation)
A newspaper bar chart showing company profit over 5 years has no vertical axis labels or scale, just bars of different heights. Explain the problem with this.

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