(2)The frequency distribution of the weights of babies born by 27 women diagnosed to be hypertensive from a certain hospital is as follows Weight No of (kg) women 1.9 - 2.1 3 2.2 - 2.4 5 2.5- 2.7 11 2.8 - 3.0 7 3.1 -3.3 4 Obtain (a) the mean (b) median (c) mode (d) mean deviation (e) coefficient of variation of the birth weight