Mathematics 0580 · IGCSE · Averages and measures of spread

Averages and measures of spread — practice question

The table gives the times, $t$ minutes, that 200 students needed to finish an IGCSE paper.
(a)[3]

Estimate the mean time by using the mid-interval values.

(b)[4]

Use the grid to construct a histogram showing the table’s data.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Use the correct mid-intervals in $\sum fm$” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI