Question 9
Height (m) |
3 |
4 |
5 |
6 |
7 |
8 |
Number of trees |
4 |
6 |
4 |
5 |
6 |
2 |
The table shows the height of teak trees harvested by a farmer.
- Find the median height.
- Calculate, correct to one decimal place, the:
- mean;
- standard deviation.
Observation
The Chief Examiner reported that many candidates were able to attempt this question satisfactorily.
In part (a), they were expected to first find the total number of trees as 4 + 6 + 4 + 5 + 6 + 2
= 27.
