Question

The heights (in cm) of 12 boys are as follows:
141, 136, 128, 135, 142, 133, 139, 147, 151, 145, 138, 145
(i) What is the height of the shortest boy?
(ii) What is the height of the tallest boy?
(iii) What is the range of their heights?
(iv) Find the mean height of the boys?
(v) How many boys have heights more than the mean height?​

Answer 1

(i)128

(ii)147

(iii)19

(iv)sum of all heights/total boys(you can use calculator)

(v)you can measure it by mean height