The table gives the distribution of heights in metres of 100 students. Height 1.40-1.42 1.43-1.45 1.46-1.48 1.49-1.51 1.52-1.54 1.55-1.57 1.58-1.60 1.61-1.6...
Question 1 Report
The table gives the distribution of heights in metres of 100 students.
| Height | 1.40-1.42 | 1.43-1.45 | 1.46-1.48 | 1.49-1.51 | 1.52-1.54 | 1.55-1.57 | 1.58-1.60 | 1.61-1.63 |
| Freq | 2 | 4 | 19 | 30 | 24 | 14 | 6 | 1 |
(a) Calculate the : (i) mean height ; (ii) mean deviation of the distribution.
(b) What is the probability that the height of a student selected at random is greater than the mean height of the distribution?
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