other govt exam IGNOU Junior Assistant Cum Typist (JAT) Mock Test 2023 Quantitative Aptitude Standard Deviation

The given table shows the marks obtained out of 100 in mathematics test by different students of class 10.

Student's Name Marks Obtained

Neha 75

Priyanka 80

Babita 85

Sakshi 60

Rosy 70

Calculate the standard deviation in marks obtained by them.

1

8.20

2

8.60

3

6.81

4

5.32

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