Daily Practice

Foundation

16th July 2026

5 questions · Foundation tier · 282 questions in this band

1
Frequency Polygons
A frequency polygon has classes of unequal width: 0-10 and 10-30. Explain why comparing the heights of the two plotted points directly can be misleading.
2
Tree Diagrams
Three branches from a single point are labelled 0.4, 0.35 and x. Find x.
3
Cumulative Frequency
On a cumulative frequency graph, what do you plot each cumulative frequency against?
4
Box Plots
A box plot shows minimum 4 and maximum 36, with median 20. State the range of the data.
5
Scatter Graphs and Line of Best Fit
Explain why estimating a y-value for x = 50 would be unreliable if all the plotted data only covers x-values from 0 to 20.

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