Page 279 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI
P. 279
bdkbZµ28% fopyu dh eki % ekud fopyu
izkIrkad vko`fÙk fxx fopyu d(x–M) fxd fd 2 uksV
(x) (f) = fx M=11 = fd fdxd
21 1 21 10 10 100
20 0 0 9 0 0
19 0 0 8 0 0
18 2 36 7 14 98
17 1 17 6 6 36
16 2 32 5 10 50
15 3 45 4 12 48
14 2 28 3 6 18
13 3 39 2 6 12
12 4 48 1 4 4
11 6 66 0 0 0
10 8 80 – 1 – 8 8
9 7 63 – 2 – 14 28
8 5 40 – 3 – 15 45
7 2 14 – 4 – 8 32
6 1 6 – 5 – 5 25
5 3 15 – 6 – 18 108
2
N (åf) = 50 åfx = 550 åfd = 612
∑ fx
lekarj ekè; M =
N
åfx = 550, N = 50
550
M =
50
M =11
∑ fd 2
ekud fopyu (s)=
N
2
åfd = 612, N = 50
612
(s)=
50
(s)= 12.4
= 3-5 (yxHkx)
LOVELY PROFESSIONAL UNIVERSITY 273
