Daily Practice

Higher

12th April 2025

5 questions · Higher tier · 360 questions in this band

1
Histograms
A histogram has bars of equal width. True or false: the height of each bar represents the frequency for that class.
2
Venn Diagrams
Events A and B are mutually exclusive with P(A) = 0.3 and P(B) = 0.25. Find P(A or B).
3
Frequency Polygons
What value do you plot on the horizontal axis for each class of a frequency polygon?
4
Tree Diagrams
On a tree diagram, what do you do to find the probability of a single path through the branches?
5
Cumulative 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.

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