Daily Practice

Higher

21st October 2025

5 questions · Higher tier · 360 questions in this band

1
Histograms
A histogram has unequal class widths. Explain why the height of a bar can no longer be read directly as the frequency.
2
Venn Diagrams
A rectangle labelled 20 contains two non-overlapping circles for events A and B with 8 and 5 inside them. How many outcomes are outside both circles?
3
Frequency Polygons
Find the midpoint of the class interval 10-20.
4
Tree Diagrams
A spinner has P(win) = 0.3. It is spun twice, independently. Find the probability of winning both times.
5
Cumulative Frequency
For 80 data values, at what cumulative frequency do you read across to find the lower quartile?

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