Page 233 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI

bdkbZµ27% osaQnzh; izo`fÙk dh eki% ekè;] ekfè;dk] cgqyd

lekUrj ekè; fudkyus dh fof/ (Method of Calculating Mean) uksV
lekUrj ekè; nks lEHkkfor iz.kkfy;ksa }kjk fudkyk tk ldrk gSµ(v) izR;{k fof/ (Direct Method)
vkSj (c) laf{kIr fof/ (Short-cut Method)A ge ,d&,d djosQ ;gk¡ nksuksa fof/;ksa osQ lEcU/ esa
foospuk djsaxsA

ljy Js.kh esa ekè;d fudkyuk (Calculation of Mean in Simple Series)

(v) izR;{k fof/ (Direct Method)µbl fof/ osQ }kjk lekUrj ekè; fudkyus osQ fy;s loZizFke
leLr inksa osQ ewY;ksa dks tksM+ fy;k tkrk gSA fiQj mlesa inksa dh la[;k dks Hkkx fn;k tkrk gSA izkIr
miyfC/ lekUrj ekè; gksrk gSA fuEufyf[kr mnkgj.k ls bl ckr dk Li"Vhdj.k fd;k tk ldrk gSµ

mnkgj.k 1- uhps 10 fo|kfFkZ;ksa dh yEckbZ dk fooj.k fn;k x;k gSA mudk lekUrj ekè; izR;{k fof/

}kjk Kkr dhft;sµ

yEckbZ (lsUVhehVj esa)µ155] 153] 168] 160] 162] 166] 164] 180] 157 vkSj 165 A
gyµmijksDr yEckb;ksa osQ vk/kj ij lekUrj ekè; fudkyus osQ fy;s izR;{k fof/ bl izdkj gksxhµ
yEckb;ksa dk ;ksx 6 × x ¾ 155 $ 153 $ 168 $ 160 $ 162 $ 166 $ 164 $ 180 $ 157
$ 165 ¾ 1630
\ \ \ \ \ 6 × x ¾ 1630
fo|kfFkZ;ksa dh la[;k (n) ¾10

6 × ∑ x
lekUrj ekè; (M) dk lw=k ¾
n

6 × ∑ x
\\ \\ \ M ¾
n
1630
¾ ¾ 163
10
vr% lekUrj ekè; (M) ¾ 163 lsUVhehVj

(c) laf{kIr fof/ (Short-cut Method)µ;fn Jsf.k;k¡ yEch gksa vkSj ewY; fHkUu&fHkUu gksa rks
izR;{k fof/ ls lekUrj ekè; fudkyus esa tksM+us vkfn osQ dke esa dkiQh ijs'kkuh gksrh gSA blhfy;s ifjJe
rFkk le; cpkus osQ mís'; ls ,d laf{kIr fof/ dk mi;ksx fd;k tkrk gSA bl fof/ esa fn;s x;s fdlh
ewY; dks Hkh ekè; eku fy;k tkrk gS] fiQj izR;sd fn;s gq;s ewY; dk bl dfYir ekè; ls fopyu
(deviation) Kkr dj fy;k tkrk gSA vFkkZr~ dfYir ekè; vkSj inksa osQ ewY;ksa esa tks vUrj gS mls
vyx&vyx ekywe fd;k tkrk gSA ;fn in dk ewY; dfYir ekè; osQ ewY; ls de gS rks bl vUrj
dks Í.k fpÉ (µ) ls fn[kk;k tkrk gS ij ;fn in dk ewY; dfYir ekè; osQ ewY; ls T;knk gS rks
vUrj dks /u fpÉ ($) ls iznf'kZr fd;k tkrk gSA blh izdkj izR;sd in ewY; dk fopyu ;k vUrj
ekywe dj fy;k tkrk gSA fiQj bu leLr fopyuksa osQ ;ksx dks inksa dh la[;k ls Hkkx nsdj tks yfC/
vkrh gS mls dfYir ekè; esa tksM+ fn;k tkrk gS] ;gh okLrfod ekè; gksrk gSA fuEufyf[kr mnkgj.k
ls bl fof/ dk vkSj Hkh Li"Vhdj.k gks losQxkA

mnkgj.k 2- mnkgj.k 1 esa 10 fo|kfFkZ;ksa dh yEckbZ dk lekUrj ekè; laf{kIr fof/ }kjk Kkr dhft;sA

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