Question

The heights of 15 students are given in a class are 165, 155, 168, 160, 163, 160, 165, 168, 156, 159, 160, 164, 163, 160 and 155 Find: (i) The Range of heights (ii) The mode (iii) The median​

Answer 1

Explanation:

Arranging in ascending order 155, 156, 159, 160, 160, 160, 162, 163, 163, 164, 165, 165, 165, 168, 168

(i) Range = 168 – 155 = 13

(ii) Mode = 160 and 165 occurs 3 times

Therefore, modes are 160 and 165 both.

(iii) Median = 163 (central value).