Answer:
The height appear to be reported because there are disproportionately more 0s and 5s.
Explanation:
Given the data :
0 0 0 0 0 0 0 0 0 1 2 3 3 3 4 5 5 5 5 5 5 5 5 5 5 5 6 8 8 8 9
Creating a frequency table :
Last digit ______ Frequency
0 ______________ 9
1 _______________ 1
2 _______________1
3 _______________3
4 _______________ 1
5 _______________11
6 _______________ 1
8 _______________ 3
9 ________________1
From the frequency distribution table, it could be seen that the volumeof 5's and 0's are far more than the volume of the other digits. We could infer from this numbers were reported and not measured.