Question

Find the range of heights of any ten students of your class.

Answer 1

Finding the range of heights of students of our class.

Range : Range is defined as the difference between the highest values and lowest values

Let us assume heights (in cm) of $10$ students of our class:
$130,133,135,137,139,142,143,145,149,152$

We know that range $=$highest value $-$lowest value

Highest value $=152$ and lowest value $=130$

Range of heights of students in our class $=152-130$
$=22\mathrm{cm}$

Hence, the required answer is $22\mathrm{cm}$.