The range of the data : 21, 6, 17, 18, 12, 8, 4, 13 is
(a) 17
(b) 12
(c) 8
(d) 15

Solution:

Given, the data is 21, 6, 17, 18, 12, 8, 4, 13

We have to determine the range of the data.

We know that the difference between the highest and lowest observations in a given data is called its Range.

Arranging the given data in ascending order, we get

4, 6, 8, 12, 13, 17, 18, 21

The highest observation is 21

The lowest observation is 4

Range = highest observation - lowest observation

= 21 - 4

= 17

Therefore, the range is 17.

✦ Try This: The range of the data : 33, 5, 7, 9, 11, 19 is

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 3

NCERT Exemplar Class 7 Maths Chapter 3 Problem 4

The range of the data : 21, 6, 17, 18, 12, 8, 4, 13 is (a) 17 (b) 12 (c) 8 (d) 15

Summary:

The range of the data : 21, 6, 17, 18, 12, 8, 4, 13 is 17

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