In the region of Arka, the total number of households in the three villages Reeta, Shan and Teber is 800. Each of the households was asked about the quality of their broadband service. Their responses are summarised in the following table.
[Table: Quality of broadband service (Excellent, Good, Poor) for Reeta, Shan, Teber]
[Table data: Reeta: Excellent=75, Good=118, Poor=32; Shan: Excellent=223, Good=177, Poor=40; Teber: Excellent=12, Good=60, Poor=63]

Q: What topic does this question test?

This question tests Probability and statistics in A-Level Mathematics (syllabus code 9709). It is worth 11 marks.

Q: Which exam paper is this question from?

This question appeared in the Cambridge A-Level Mathematics May/June 2021 examination, Paper 5 Variant 3 (9709_s21_qp_53.pdf).

Question

In the region of Arka, the total number of households in the three villages Reeta, Shan and Teber is 800. Each of the households was asked about the quality of their broadband service. Their responses are summarised in the following table.
[Table: Quality of broadband service (Excellent, Good, Poor) for Reeta, Shan, Teber]
[Table data: Reeta: Excellent=75, Good=118, Poor=32; Shan: Excellent=223, Good=177, Poor=40; Teber: Excellent=12, Good=60, Poor=63]

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