Question

Marks:- 0-5,5-10,10-15,15-20,25-30,35-40 No. of students 4,6,10,10,25,22,18,5. Draw a less and more than than type o give and find median​

Answer 1

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10th

Maths

Statistics

Ogives

The marks obtain by 100 stu...

STATISTICS

Asked on October 15, 2019 by

Mukhilan Walavalkar

The marks obtain by 100 students of a class in an examination are given below.

Marks No. of Students

0 - 5 2

5 - 10 5

10 - 15 6

15 - 20 8

20 - 25 10

25 - 30 25

30 - 35 20

35 - 40 18

40 - 45 4

45 - 50 2

Draw 'a less than' type cumulative frequency curves (ogive). Hence find median.

MEDIUM

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ANSWER

Cumulative frequencies are 2,7,13,21,31,56,76,94,98,100

2

N

=

2

100

=50

⟹ Median class is 25−30

⟹M=l+

f

h

[

2

N

−C]

⟹25+

25

5

[50−31]=28.8