Page 205 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

bdkbZ—12% js[kh; izrhixeu fo'ys"k.k % ifjp; ,oa izrhixeu dh js[kk,¡

y = (2.06 × 30) – 4.02 = 61.80 – 4.02 = 57.78 ;k 58 uksV
σ σ
fVIi.khμb = σ y x rFkk b = σ x y osQ eku fuEu lw=k ls Hkh Kkr fd, tk ldrs gSa %
yx
xy
Σdd 268 Σdd y Σdd
x
x
x
b = Σd 2 x y = 134 = 2, b = Σd 2 y , r = r = Nσσ y y
xy
xy
yx
x
y
x
tgka] d = x − rFkk d = y − rc y − y = b xy x −( x)
y
x
⇒ y = 2x – 3 ⇒ y = 57 tcfd x = 30 gSA
Lo&ewY;kadu (Self Assessment)
2- fn, x, iz'uksa dks gy dhft,
1. fuEufyf[kr vkadM+ksa ls nksuksa izrhieku js[kkvksa osQ lehdj.k Kkr dhft, %
x : 6 2 10 4 8
y : 9 10 5 8 7
2. fuEufyf[kr vkadM+ksa ls nksuksa izrhieku js[kkvksa osQ lehdj.k Kkr dhft, %
x : 27 27 27 28 28 18 29 29 30 31
y : 18 18 19 20 21 21 22 23 24 25

3. 11 fo|k£Fk;ksa }kjk lkaf[;dh esa fuEukafdr vad izkIr fd;s x;sA izrhieku js[kkvksa osQ lehdj.k Kkr djsaA
iz'u&i=k (Paper) I : 45 55 56 58 60 65 68 70 75 80 85

iz'u&i=k (Paper) II : 56 50 48 60 62 64 65 70 74 82 90
4. fuEu Jsf.k;ksa osQ fy, nksuksa izrhieku js[kk,a Kkr djsaA y dk vR;f/d lEHkkfor eku D;k gksxk tcfd
x = 150 gks %
x : 147 148 135 151 136 148 157 110 162
y : 191 288 410 482 513 506 468 477 541

5. ikap ifjokjksa osQ ifjokj lnL;ksa dh la[;k (E) vkSj mudk ekfld O;; (N) fuEu izdkj gS %
E : 250 300 410 450 565
N : 2 3 4 5 6

E dk N ij izrhixeu lehdj.k Kkr djksA ;fn ifjokj dk vkdkj 8 gks rks lEHkkfor ekfld O;;
D;k gksxk\

12-3 lkjka'k (Summary)

• lkaf[;dh esa ^izrhixeu* dk 'kkfCnd vFkZ okil vkus ;k ihNs ykSVus ls gSA bl 'kCn osQ iz;ksx dk Js;

lj izQkafll xYVu (Sir Francis Galton) dks fn;k tkrk gSA bUgksaus gh loZizFke izrhixeu dk
fo'ys"k.kkRed vè;;u fd;kA
• izrhixeu osQ vk/kj ij lkekftd] vk£Fkd o O;kolkf;d {ks=kksa esa fofHkUu rF;ksa osQ eè; lEcU/ksa dk

fo'ys"k.k djosQ ,d inewY; ls lEcfU/r nwljh (vkfJr) Js.kh osQ loksZi;qDr ewY; dk vuqeku fd;k
tk ldrk gSA

LOVELY PROFESSIONAL UNIVERSITY 199