Mathematics 0580 · IGCSE · Averages and measures of spread

Averages and measures of spread — practice question

The table gives the waiting times of 120 patients at a medical centre.
(a)[4]

Calculate an estimate for the mean waiting time.

(b)[4]

Complete the histogram for the patients whose waiting time is between 10 and 30 minutes.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “30.875 minutes” …

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