Question

question:
The marks obtained in a class test by 10 students are as follows : 18, 14, 23, 15 ,18, 10, 13, 17, 11 and 19 . Find the range of the marks. *

options:

11

12

13

14

maths fractions and decimals
NCERT CBSE

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Answer 1

Given:-

• Observations are 18, 14, 23, 15 ,18, 10, 13, 17, 11 & 19.

To Find:-

• The range of the marks.

Solution:-

→ Maximum Value = 23

→ Minimum Value = 10

$\boxed{\sf{\star\;Range = Maximum\;Value - Minimum\;Value}}$

$23 - 10 \\ 13$

• Range = 13 ☞ Option C.

$\Large{✓}$

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Answer 2

Answer:
Option 2 : 12

Explanation:
As we know, range is the Maximum observation - Minimum observation.
Here, the max observation is 23 and the min observation is 11.
So, we’ll subtract 11 from 23
= 23-11
= 12
Therefore, option 2 (12) is correct..
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