Mathematics 0580 · IGCSE · Averages and measures of spread

Averages and measures of spread — practice question

The list contains the numbers 7, 9, 20, 3, 9.

(a)[1]

One number is removed from this list, and neither the median nor the range changes. Write down this number.

(b)[1]

A further number is added to the original list and the mode stays the same. Write down one possible value for this number.

Worked solution & mark scheme

This 2-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$7$” …