Question 28 (OR 2 nd   question)

The following data indicates the marks of 53 students in Mathematics. Draw less than type ogive for the data above and hence find median

Marks

Number of students

0 – 10

5

10 – 20

3

20 – 30

4

30 – 40

3

40 – 50

3

50 – 60

4

60 – 70

7

70 – 80

9

80 – 90

7

90 – 100

8

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Question 28 (OR 2nd question) The following data indicates the marks of 53 students in Mathematics. Draw less than type ogive for the data above and hence find median To solve this, first we find cumulative frequency and then make a less than table โˆ‘โ–’๐‘“๐‘– = 53 So, N = 53 โˆด ๐‘/2 = 53/2 = 26.5 We draw a line parallel to x-axis where Number of students = 26.5 Where the line intersects the curve at x-axis, it is the median โˆด Median marks = 64

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.