find the median of the following frequency distribution
marks 0-5 5-10 10-15 15-20 20-25 25-30 30-35 35-40
frequency 8 12 20 12 18 13 10 7
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2
Answer:
CI
0-5
5-10
10-15
15-20
20-25
25-30
F
5
3
9
10
8
5
CF
5
8
17
27
35
40
2
N
=
2
40
=20 lies in CF 27 so, 15−20 is Median class
So, Median =L+(
F
(n/2)−Cf
)×H
=15+(
10
20−17
)×5
Median 16.5
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Answer:
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