Question

find the range of height of any 10 student of your class

Answer 1

Formulae for range is highest value - lowest value
Suppose in your class height of 10 students are
523,527,256,452,541,425,652,412,452,536(cms)
So range =652-412=240
Hope u understand

Answer 2

Hey there!

Let the height of students be:

121,122,123,124,125,126,127,128,129,130 [in cm]

Now,
Highest value = 130
Lowest value = 121 

Range = highest value - lowest value
            = 130 - 121
            = 9 cm ← (Ans)