200 students estimate the capacity, x millilitres, of a cup. The results are displayed in the frequency table.
(a(i))[4]
Calculate an estimate for the mean.
(a(ii))[4]
Finish the histogram.
(b(i))[3]
Using the grid, draw a cumulative frequency diagram.
(b(ii)(a))[1]
Find the value of the 65th percentile.
(b(ii)(b))[2]
Find how many students estimated more than 75 g.
Worked solution & mark scheme
This 14-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Midpoint-based $\Sigma fx$” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI