Mathematics 0580 · IGCSE · Averages and measures of spread

Averages and measures of spread — practice question

The stem-and-leaf diagram gives the ages of 21 people. Key: 1 | 6 shows 16 years.

(a)[1]

Find the fraction of people who are older than 30 years.

(b)[1]

Work out the range.

(c)[1]

Find the median.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “ $\frac{2}{3}$ ” …