Mathematics 0580 · IGCSE · Statistical charts and diagrams
Statistical charts and diagrams — practice question
The frequency table below records the mass, $m$ kg, for each of $150$ children:
Mass (kg): $0 < m \le 10$, $10 < m \le 20$, $20 < m \le 25$, $25 < m \le 40$, $40 < m \le 50$
Frequency: $12$, $38$, $32$, $50$, $18$.
(a)[4]
Calculate an estimate for the mean mass.
(b)[4]
Draw a histogram to display the data in the table.
(c(i))[2]
Use the frequency table to fill in the cumulative frequency table.
(c(ii))[2]
Calculate the percentage of children whose mass is greater than $10\,\text{kg}$.
Worked solution & mark scheme
This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: “25.2” …