Page 212 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

vFkZ'kkL=k esa lkaf[;dh; fof/;k¡

uksV ( Σ Σdx)( dy)
Σdxdy −
= N
Nσ x 2
( Σ Σdx)( dy)
Σdxdy −
= L 2 Σdx F N 2 O
dxI
N M Σ −G J P
K
N M N H N Q P
( Σ Σdx)( dy)
Σdxdy −
N
= F ΣdxI 2
Σdx −G J
2
H N K
Σ−
N.Σ ( dx )( dy )
Σdxdy
=
N.Σ 2 ( dx ) 2
Σdx −
lw=k esaμ
Σdxdy = X o Y Js.kh osQ dfYir ekè;ksa ls Kkr fopyuksa osQ xq.kuiQy dk ;ksxA
2
Σdx = X Js.kh osQ dfYir ekè; ls Kkr fopyuksa osQ oxZ dk ;ksxA
2
Σdy = Y dh Js.kh osQ dfYir ekè; ls Kkr fopyuksa osQ oxZ dk ;ksxA
Σdx = X Js.kh osQ dfYir ekè; ls Kkr fopyuksa dk ;ksxA
Σdy = Y Js.kh osQ dfYir ekè; ls Kkr fopyuksa dk ;ksxA
izrhixeu xq.kkadksa osQ vk/kj dj izrhixeu lehdj.kksa dks fuEu izdkj O;Dr fd;k tk,xkμ
X dk Y ij izrhixeu lehdj.k

X – X = bxy (Y – Y ) ;k X – X = b (Y – Y )
1
Y dk X ij izrhixeu lehdj.k
Y – Y = b (X – X )
2
mnkgj.k (Illustration) 4: fuEu lkj.kh ls Y dk X ij ,oa X dk Y ij izrhixeu lehdj.k izkIr dhft, ,oa
tc vk;q (X) 50 o"kZ gks rks jDrpki dk vuqeku yxkb,μ
Age (vk;q) Blood Pressure (jDrpki)
(X) (Y)

56 147
42 125
72 160
36 118
63 149
47 128
55 150
49 145
38 115
42 140
68 152
60 155

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