Subject :IMO Class : Class 7
The heights of 10 students were measured in cm and the results are as follows : 147, 139, 135, 136, 149, 166, 152, 163, 155, 144.
(i) What is the range of the data?
(ii) What is the mean height of the students?
(iii) How many students are there whose height is more than the mean height?
| (i) | (ii) | (iii) | |
| A | 30 | 100.5 | 3 |
| B | 31 | 148.6 | 5 |
| C | 32 | 149 | 5 |
| D | 28 | 148.6 | 4 |
Ans 1:
Class : Class 7