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Q.

The marks obtained by the students of a class in Maths class test (out of 30) were as follows:

12, 23, 29, 15, 30, 20, 22, 24, 28, 30, 12, 11, 15, 16, 18, 10.5, 28, 25, 11, 15. Find the mode.

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a

12

b

11

c

28

d

15

answer is D.

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Detailed Solution

detailed_solution_thumbnail
Marks obtainedTallyNo. of students (Frequency)

10.5

11

12

15

16

18

20

22

23

24

25

28

29

30

I

II

II

III

I

I

I

I

I

I

I

II

I

II

1

2

2

3

1

1

1

1

1

1

1

2

1

2


 

Marks that has been obtained by highest number of students is 15.

Hence, mode is 15.

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