# Ex.3.1 Q1 Data Handling - NCERT Maths Class 7

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## Question

Find the range of the heights of any $$10$$ students of your class

Video Solution
Data Handling
Ex 3.1 | Question 1

## Text Solution

What is known?

The heights of ten student.

What is unknown?

The range of heights.

Reasoning:

Range $$=$$ Highest value $$-$$ Lowest value

Steps:

 Serial no. Name of the students Height (in cm) $$1$$ Yash $$126$$ $$2$$ Nidhi $$128$$ $$3$$ Toshi $$134$$ $$4$$ Abhishek $$148$$ $$5$$ Dimple $$146$$ $$6$$ Parul $$132$$ $$7$$ Neha $$129$$ $$8$$ Ananya $$137$$ $$9$$ Arya $$127$$ $$10$$ Dipti $$130$$

$$\therefore$$  Range $$=$$ Highest value $$-$$ Lowest value

Highest value among this observation $$= 148$$

Lowest value among this observation $$= 126$$

$$\therefore$$ Range $$= 148 - 126 = 22 \rm\,cm$$

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