Mathematics 0580 · IGCSE · Statistical charts and diagrams
Statistical charts and diagrams — practice question
Nico surveyed all 900 students at her school to find their favourite subject. The only options were Science, Art, Mathematics, History or Geography. Some of the results are displayed in the pie chart. The labels on the pie chart include: Science, Art (marked $18^{\circ}$), Mathematics.
(a)[1]
Show that the number who chose Science is 225.
(b)[2]
Find the number of students who chose Art.
(c)[2]
Complete the pie chart so that it displays this information.
(d(i))[1]
Write down the probability that French is their favourite subject.
(d(ii))[2]
Find the probability that their favourite subject is Art. Give your answer as a fraction in its lowest terms.
(e)[2]
Estimate how many students would be expected to choose History as their favourite subject.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The calculation is $\frac{90}{360} \times 900 = 225$.” …