(a)[3]
Finish the histogram so that it shows this information. The first two blocks have already been drawn for you.
(b)[4]
Calculate an estimate of the mean height.
Mathematics 0580 · IGCSE · Averages and measures of spread
Averages and measures of spread — practice question
For 100 plants, the height, $h$ cm, of each one is noted. The table gives the height data for these plants.
Height ($h$ cm): $10<h\le15$, $15<h\le25$, $25<h\le40$, $40<h\le60$, $60<h\le70$
Frequency: 8, 18, 28, 33, 13
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “All bars drawn with correct widths and heights (correct histogram)” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI