Question

Answer the following :

Find the range of the following data

Classes	115 - 125	125 - 135	135 - 145	145 - 155	155 - 165	165 - 175
Frequency	1	4	6	1	3	5

Answer 1

Here, upper limit of the highest class (L) = 175,

lower limit of the lowest class (S) = 115

∴ Range = L – S

= 175 – 115

= 60