Foundation
29th September 2026
- 1Venn Diagrams
A Venn diagram shows 40 people: 22 own a car, 15 own a bike, 6 own both. Find the probability a random person owns neither.
- 2Frequency Polygons
Find the midpoint of the class interval 10-20.
- 3Tree Diagrams
On a tree diagram, what do you do to find the probability of a single path through the branches?
- 4Cumulative Frequency
Explain why a value read from a cumulative frequency graph, such as the median, is described as an estimate rather than an exact value.
- 5Box Plots
Box plot A has a median of 50 and box plot B has a median of 42, for the same type of data. What does this tell you about the two data sets?
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