O-LevelMathematicsStatistics4024/12 · Oct/Nov 2022 · Q204 Marks
The table shows some information about the times each of 100 children spent reading in one day. [Table with Time (t mins), Frequency, Frequency density for intervals x<t≤30, 30<t≤40, 40<t≤45, 45<t≤60]
- (a)Find the value of x in the interval x < t ≤ 30.[1]
- (b)On the grid, draw a histogram to represent the data for the 100 children. [Grid for histogram][3]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2022). The mark or mark type is shown in brackets.
- [1] 10
- [3] Correct histogram
- FT their (a)
- B1FT for 3 or 4 rectangles on correct bases
- B1 for 3 or 4 rectangles with correct heights
- If 0 scored, SC1 for frequency densities 3 and 2 soi
Write your answer and get it marked
On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.
Sign up free →