MEDIAN
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A) Find the median of following:
1) 37,31,42,43,46,25,39,43,32.
2) 31,38,27,28,39,35,49.
3) 83,37,70,29,45,63,41,70,30,54.
4) 79,82,36,38,51,72,68,70,64,63.
5) Median of 7,2,5,9,6
6) 50,53,61,49,45,63,48
7)10,75,3,81,18,27,4,48,12,47,9,15
8) Find median of the first 9 consecutive natural numbers.
9) The median of the first 49 natural numbers is…
10) Median 8,3,11,7,12,6,9.
11) Median of 33,86,68,32,80,48,7
12) 31,35,27,29,32,43,37,41, 34,28,36,44,45,42,30
13) 3,1,5,6,3,4,5,3,7,2
14) 11,12, 14,18, x+2, x+4, 30, 32,
35,41 arranged in ascending
order is 24, find x.
15) If the weights of 10 students
(in kg) arranged in a ascending order are: 53,47,34,36,x -5, x+ 5, 54,37,44,32 with median 45 kg find value of x.
16) Find the median of the following data: 41,43,127,99,61, 92,71,58,57. If 58 is replaced by 85, what will be the new median.
B) Find the median
1) X: 3 6 10 12 7 15
F: 3 4 2 8 13 19
2) X: 5 7 9 12 14 17 19 21
F: 6 5 3 6 5 3 2 4
3) S. No. Mar(Eng). Marks(math)
1 53 55
2 54 41
3 32 48
4 30 49
5 60 27
6 46 24
7 28 23
8 25 20
9 48 28
10 72 60
11 33 43
12 65 66
Indicate in which subject the level of achievement is higher ?
4) X: 4 4.5 5 5.5 6 6.5 7 7.5 8
Y:10 18 22 25 40 15 10 8 7
5) X: 8 5 6 10 9 4 7
Y: 6 4 5 8 9 6 4.
6) Mid values. frequency
115 6
125 25
135 48
145 72
155 116
165 60
175 38
185 22
195 3
C) Find median of the following:
1)X: 0-10 10-20 20-30 30-40 40-50
F: 5 7 10 10 8
2)
X: 1-10 11-20 21-30 31-40 41-50
F: 3 5 8 6 3
3) Marks Number of students
15-20 4
20-25 5
25-30 1
30-35 6
35-40 5
40-45 8
45-50 9
50-55 6
55-60 4
60-65 2
4) Age(in yrs.) Class
5-14 447
15-24 307
25-34 279
35-44 220
45-54 157
55-64 91
65-74 39
5) Age(years). No of persons
Below 10 2
Below 20 5
Below 30 9
Below 40 12
Below 50 14
Below 60 15
Below 70 15.5
70 and above 15.6
6)Mark more than No of students
0 50
10 46
20 40
30 20
40 10
50 3
7) Find the missing Numbers
C .I Frequency
300-325 5 median is 413.11
325-350 17
350-375 80
375-400. ?
400-425 326
425-450. ?
450-475 88
475-500 9
Total 10008
8) Find missing Numbers if
N=100 and median is 30
Marks frequency
0-10 10
10-20. ?
20-30 25
30-40 30
40-50. ?
50-60 19
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