Choosing a useful display

Choosing a useful display

Secondary 2
5 marks
TGM Original Questions

A librarian records the numbers of books borrowed by 16 visitors: 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 5, 7 and 9.

  1. Choose a dot diagram or a grouped histogram to show every recorded value. Draw the chosen diagram.[3]
  2. Explain one advantage and one disadvantage of your choice compared with a grouped histogram.[2]

Solution:

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Answer:(a) Dot diagram as shown. (b) Exact values are retained, but large datasets can make dot stacks crowded.

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