The marks obtained by 17 students in a mathematics test (out of 100) are given below:
91, 82, 100, 100, 96, 65, 82, 76, 79, 90, 46, 64, 72, 68, 66, 48, 49.
The range of the data is:
a. 46
b. 54
c. 90
d. 100

Solution:

Given

Marks obtained by 17 students (out of 100) is

91, 82, 100, 100, 96, 65, 82, 76, 79, 90, 46, 64, 72, 68, 66, 48, 49

We know that

Range = Maximum value - Minimum value

Here the maximum value is 100 and the minimum value is 46

Substituting the value

Range = 100 - 46

Range = 54

Therefore, the range of the data is 54.

✦ Try This: The marks obtained by 15 students in a mathematics test (out of 100) are given below :

90, 81, 100, 100, 94, 61, 80, 75, 72, 92, 40, 62, 71, 66, 63, 45, 47.

The range of the data is :

☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 14

NCERT Exemplar Class 9 Maths Exercise 14.1 Sample Problem 1

The marks obtained by 17 students in a mathematics test (out of 100) are given below: 91, 82, 100, 100, 96, 65, 82, 76, 79, 90, 46, 64, 72, 68, 66, 48, 49. The range of the data is: a. 46, b. 54, c. 90, d. 100

Summary:

The marks obtained by 17 students in a mathematics test (out of 100) are given below: 91, 82, 100, 100, 96, 65, 82, 76, 79, 90, 46, 64, 72, 68, 66, 48, 49. The range of the data is 54

☛ Related Questions:

• The class-mark of the class 130-150 is : a. 130, b. 135, c. 140, d. 145
• A die is thrown 1000 times and the outcomes were recorded as follows : Outcome 1 2 3 4 5 6 Frequency . . . .
• The class mark of the class 90-120 is : a. 90, b. 105, c. 115, d. 120