Page 77 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

bdkbZμ5 % ekè;] ekfè;dk rFkk cgqyd osQ vuqiz;ksx

2. ?kuRo ijh{k.k (Density Test)μdHkh&dHkh lewgu osQ ckn Hkh nks ;k nks ls vf/d oxks± dh vko`fÙk;k¡ leku uksV
:i ls vf/dre ckj ik;h tkrh gSa rc cgqyd oxZ dk fu/kZj.k djus osQ fy, mu oxks± dh vkSj muosQ fudVorhZ
oxks± dh vko`fÙk;k¡ tksM+dj mudh rqyuk dh tkrh gS ftl oxZ lewg dk tksM+ T;knk gksrk gS ogh cgqyd oxZ
eku fy;k tkrk gSA ysfdu ;fn budk tksM+ Hkh cjkcj gks rks fiQj mls f}&cgqyd Js.kh eku ysrs gSa vFkkZr~ mldk
cgqyd ewY; vfuf'pr ,oa vfu/kZfjr gSA mnkgj.k osQ fy,μ
mnkgj.k (Illustration) 12: fuEu lkj.kh ls cgqyd Kkr dhft,μ

eè; vkdkj 15 25 35 45 55 65 75 85

vko`fÙk;k¡ 5 9 13 21 20 15 8 3

gy (Solution): oxkZUrjksa osQ LFkku ij osQUnzh; vkdkj ;k eè; ewY; fn;s x;s gSa] ftuesa nl&nl dk vUrj gSA
vr% oxkZUrjksa dh lhek,¡ 15 ± 5, 25 ± 5, 35 ± 5 gksaxh vFkkZr~ oxkZUrj 10-20, 20-30 gksxkA

cgqyd oxZ dk fu/kZj.k
(Location of Modal Group)

vko`fÙk vf/dre vko`fÙk
oxkZUrj nks&nks osQ tksM+ rhu&rhu osQ tksM+ okys oxZ
(i) (ii) (iii) (iv) (v) (vi)
U U
10—20 5 V U | U
|
20—30 9 W 14 V 22 V 27 |
W
|
|
V
30—40 13 U U W V 43 U | 1
U
|
W
40—50 21 W 34 V 41 | W V 54 || 2
V
|
50—60 20 U U | 56 U W |||| 5
V
W
60—70 15 W 35 V 23 W V 43 U |||| 5
|
|
V
70—80 8 U W V 26 || 3
|
80—90 3 W 11 W | 1
lkj.kh ls Li"V gS fd (40—50) ,oa (50—60) okys oxks± esa vf/dre vko`fÙk 5—5 vk;h gSA vr% nksuksa esa ls
cgqyd oxZ fu/kZfjr djus osQ fy, ?kuRo ijh{k.k fd;k tk,xkμ
40—50 50—60
cgqyd oxZ dh vko`fÙk 21 20
igys oxZ dh vko`fÙk 13 21
ckn okys oxZ dh vko`fÙk 20 15
54 56
vr% (50—60) gh cgqyd oxZ gksxk ftldh vko`fÙk 20 gS ijUrq blls igys oxZ dh vko`fÙk vf/d gksus osQ
dkj.k oSdfYid lw=k dk iz;ksx gksxkμ
f 15 50
Z = l + 2 ×= 50 + × 10 = 50 +
i
1
f + f 2 21 15 36
+
0
= 50 + 4.166 = 54.17

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