Page 169 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

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

76 76 76 uksV
= = = = 0.96
.
28 × 226 6328 79 55
oSdfYid fof/

Σd 2 28
Js.kh X dk izeki fopyu] σ = N x = 7 = 4 = 2
x

Σd 2 226
.
Js.kh Y dk izeki fopyu] σ = N y = 7 = 32 28 = 5.68
y
Σdd
∴ r = x y
Nσσ y
x
76 76
= = = 0.96
.
.
7 × 2 × 5 68 79 52
mnkgj.k (Illustration) 3:
X rFkk Y Js.kh esa lglEcU/ xq.kkad Kkr dhft,μ
Js.kh (Series) X : 17 18 19 19 20 20 21 21 22 23
Js.kh (Series) Y : 12 16 14 11 15 19 22 16 15 20
gy (Solution):

Js.kh X Js.kh Y
X d x d x 2 Y d y d y 2 d d
x y
17 – 3 9 12 – 4 16 + 12
18 – 2 4 16 0 0 0
19 – 1 1 14 – 2 4 + 2
19 – 1 1 11 – 5 25 + 5
20 0 0 15 – 1 1 0
20 0 0 19 + 3 9 0
21 + 1 1 22 + 6 36 + 6
21 + 1 1 16 0 0 0
22 + 2 4 15 – 1 1 – 2
23 + 3 9 20 + 4 16 + 12

2
2
ΣX = 200 0 Σd = 30 Σy = 160 0 Σd = 108 Σd d = 35
y
x y
x
X-Js.kh Y-Js.kh
ΣX 200 ΣY 160
X = = = 20 Y = = = 16
N 10 N 10
Σd 2 30 Σd 2 y 108
σ = N x = 10 σ = N = 10 = 3.286
x
y

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