Apartment occupancy frequency and dot diagrams

Apartment occupancy frequency and dot diagrams

Secondary 2
8 marks
TGM Original Questions

The numbers of occupants in 20 apartments are: 2, 1, 4, 2, 6, 3, 2, 5, 1, 4, 2, 3, 6, 4, 5, 1, 2, 4, 3, 1.

  1. Construct a frequency table.[3]
  2. Draw a dot diagram.[3]
  3. State the mode.[1]
  4. Find the percentage with at most 3 occupants.[1]

Solution:

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Answer:(a) frequencies \(1:4,2:5,3:3,4:4,5:2,6:2\) (b) corresponding dot plot (c) \(2\) (d) \(60\%\).

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