Page 175 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

bdkbZ—10% lglaca/ % fo{ksi&fp=k fof/] dkyZ fi;lZu dk lglaca/ xq.kkad

30 uksV
− − 306
⇒ r = 12
R 25 U R 36 U
S 255 − V S 704 − V
W T
T
W
12
12
− − 306 2 5
.
=
( 255 − . )( − 2 1 704 3)
.
.
− 308 5. − 308 5 − 308 5
= = = = – 0.733
.
.
,
,
252 9 × 701 177 282 9 42105
.
mnkgj.k (Illustration) 9: fuEu lkj.kh 12 LFkkuksa ij tkM+s esa cks;s tkus okys xsgwa osQ fy, X (4 bap xgjkbZ
ij Hkwfe dk rkiØe iQkjsugkbV va'k esa) rFkk Y (mxus esa yxk le; fnuksa esa) osQ ewY;ksa dks iznf'kZr djrh gS
%
X : 57 42 40 38 42 45 42 40 44 46 44 43
Y : 10 26 30 41 29 27 27 19 18 19 31 29
gy (Solution):
Hkwfe dk rkiØe fnu

X – 44 Y – 26 d d
x y
X d x d x 2 Y d y d y 2
57 + 13 169 10 – 16 256 – 208
42 – 2 4 26 0 0 0
40 – 4 16 30 + 4 16 – 16
38 – 6 36 41 + 15 225 – 90
42 – 2 4 29 + 3 9 – 4
45 + 1 1 27 + 1 1 + 1
42 – 2 4 27 + 1 1 – 2
40 0 0 19 – 7 49 0
44 – 4 16 18 – 8 64 + 32
46 + 2 4 19 – 7 49 – 14
44 0 0 31 + 5 25 0
43 – 1 1 29 + 3 9 – 3

2
ΣX = 523 Σd = – 5 Σd = 225 ΣY = 306 Σd = – 6 Σd = 704 Σd d = – 306
2
x
y
x y
y
x
[pwafd X rFkk Y iw.kk±d ugha gSa vr% dfYir ekè;e ls fopyu ysuk lqfo/ktud jgsxkA]
ΣX 523
X = = = 43.58
N 12
Σ 2 Σd F d I 2 Σ 2 Σd F d I 2
−G
y
x
x
y
σ x = N H N K J σ x = N H G N K J
−
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