Page 277 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI

bdkbZµ28% fopyu dh eki % ekud fopyu

24 +3 9 uksV
26 +5 25
28 +7 49
30 +9 81
32 +11 121

2
åx = 252 åd = 572
N = 12
∑ x
lekarj ekè; (M) =
N
25 2
M = = 21
12
 ∑ d 
2
ekud fodyu (s)=   N  

2
;gk¡ åd = 572
N =12
lw=k esa eku j[kus ij

572
s =
12
= 47.66

\ s = 6-9 yxHkx
;fn bl iz'u dks ge laf{kIr fofèk (Short-cut Method) ls gy djuk pkgsa rks gy (Solution) bl izdkj
gksxkµ

∑ ´ d 2  ∑ ´ d  2
lw=k s = −   
N N 

ekuk fn, x, izkIrkadksa dk dfYir ekè; (A) 20 gSA

izkIrkad dfYir ekè; (A) = 20 fopyu (d´)

(x) ls izkIRkkad (x) dk fopyu d´ dk oxZ d´ 2

10 µ 10 100
12 µ 8 64

14 µ 6 36
16 µ 4 16

18 µ 2 4

20 µ 0 0

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