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

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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