Page 272 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI

lkekftd 'kks/ dh i¼fr

uksV 40 9 (40 × 9) = 360
45 6 (45 × 6) = 270
50 7 (50 × 7) = 350
35 4 (35 × 4) = 140

;ksx åf = 50 ådx = 1652

lekarj ekè; dk lw=kµ

∑ f x
= M ∑ f

1652
=
50
= 33.04
vr% lekarj ekè; ¾ 33 yxHkx

vc bl lekarj ekè; (M) 33 dks vkèkkj ekurs gq, bldk izkIrkad (x) ls fopyu (x – M) = d ekywe djuk
gksxkA blosQ ckn fo|k£Fk;ksa dh vko`fÙk (f) rFkk fopyu (d) dks xq.kk djosQ f. d Kkr djuk gksxkA var esa
åfd/åf vFkok åfd/n lw=k dk mi;ksx djrs gq, ekè; fopyu dh x.kuk djuh gksxhA fuEufyf[kr lkj.kh esa
blh dk Li"Vhdj.k gSµ

izkIrkad fo|k£Fk;ksa dh izkIrkad ls ekè; fo|k£Fk;ksa dh la[;k rFkk
(x) la[;k (f) dk fopyu fopyu dk xq.kudy

(x – m) = d* (f. d)
12 4 (12 – 33) = 21 (4 × 21) = 84
25 3 (25 – 33) = 8 (3 × 8) = 24
27 2 ( 27– 33) = 6 (2 × 6) = 12
30 2 (30 – 33) = 3 (2 × 3) = 6
35 5 (35 – 33) = 2 (5 × 2) = 10
15 8 (15 – 33) = 18 (8 × 18) = 144
40 9 (40 – 33) = 7 (9 × 7) = 63
45 6 (45 – 33) = 12 (6 × 12) = 72
50 7 (50 – 33) = 17 (7 × 17) = 119
35 4 (35 – 33) = 2 (4 × 2) = 8
å
å
å
å
;ksx å å å å åf = 50 å f d = 542
ekè; fopyu (M. D.) dk lw=kµ
∑ f d 542
d = = = 10.84
∑ f 50
vr% ekè; fopyu = 10.84

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