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 \(= 148 - 126 = 22 \rm\,cm\)