Page 222 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

vFkZ'kkL=k esa lkaf[;dh; fof/;k¡

uksV 82
a = = 16.4
5
izrhixeu lehdj.k X = 16.4 – 1.3Y
Y= a + bx
a rFkk b dk eku fuEu izdkj Kkr fd;k tk,xkμ
ΣY= Na + bΣX ...(i)
ΣXY = aΣX + bΣX 2 ...(ii)
40 = 5a + 30b
214 = 30a + 220b
lehdj.k (i) dks 6 ls xq.kk djus ij
240 = 30a + 180b
– – – ?kVkus ij
– 26 = 40b

26
b = – = – .65
40
lehdj.k (i) esa b dk eku j[kus ijμ
40 = 5a + 30 × ( – .65)
40 = 5a – 19.5
40 + 19.5 = 5a
.
59 5
a = = 11.9
5
izrhixeu lehdj.kμ Y = 11.9 – .65X

lglEcU/ xq.kkad = b × b 2
1
= – 13. × . 65 = – .845

= – .92
mgkgj.k (Illustration) 8: uhps vk; vkSj miHkksx O;; osQ vk¡dM+s fn, x, gSa] Kkr djksμ
(i) miHkksx iQyu vFkkZr~ miHkksx O;; dk vk; ij lekJ;.kA
(ii) vkSlr miHkksx O;; vkSj vkSlr vk; Lrj ij vkSlr miHkksx izo`fÙkA

(iiii) miHkksx O;; tc vk; 450 #- gksA
vk; miHkksx O;;
(Income) (Consumption expenditure)
200 180
300 270
400 320
600 480
900 700

216 LOVELY PROFESSIONAL UNIVERSITY