# 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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