Daily Practice

Foundation

9th October 2024

5 questions · Foundation tier · 282 questions in this band

1
Stratified Sampling (Foundation)
A youth club has 45 members under 13 and 75 members aged 13 to 17 (120 total). A stratified sample of 40 members is needed. How many aged 13 to 17 should be sampled?
2
Pilot Surveys (Foundation)
A company pilots its customer feedback survey on 20 customers before sending it to all 5000 customers. Explain why using only 20 people is still useful.
3
Recognising Misleading Graphs (Foundation)
A 3D pie chart is used to show market share. Explain why 3D charts can be misleading.
4
Mean Median Mode and Range
Find the mode of 5, 6, 5, 8, 6, 6, 9.
5
The Statistical Enquiry Cycle
Which stage of the statistical enquiry cycle comes immediately after collecting the data?

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