"weight.
Find the mode of the following distribution by drawing a histogram.
Mid value
12
18
24
30
36
Frequency
42
48
20
12
8
24
16
8
12
Also state the modal class.
Hint. Size of each class = difference between two consecutive mid-values = 18 - 12 = 6.
Convert the given data into continuous classes.
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ANSWER:
S. No. Marks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 6
9
10
12
18
19
23
23
24
28
37
48
49
53
60
N = 15
Median = size of (
N+1
2
)th item
or, M = size of (
15+1
2
)th item
or, M = size of 8th item
⇒ M = 23
Therefore, the median marks in the economics paper is 23.
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