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bdkbZ—10% in fo'ys"k.k% in dfBurk] foHksnhdj.k lwph] fod"kZu dh izHkko'khyrk




            bl rkfydk ls fofnr gksrk gS fd 'krka'k 27 dk eku 42-63 vkSj 'krka'k 73 dk eku 64-50 gS bldk vFkZ ;g  uksV
            gqvk fd bl lewg osQ 43 izkIrkad rd osQ Nk=kksa dks fuEu oxZ rFkk 65 izkIrkad ls Åij osQ Nk=kksa dks mPp oxZ
            esa lfEefyr fd;k tk;sxk vkSj buosQ mÙkj i=kdksa dk vadu vyx&vyx fd;k tk;sxkA
            ijh{k.k osQ mÙkj i=kdksa dk vadu nks izdkj ls fd;k tkrk gSμ
              1-  izR;sd Nk=k us ijh{k.k osQ fdrus inksa dk mÙkj lgh fn;k gS lgh mÙkjksa dk ;ksx Nk=k dk izkIrkad dgykrk
                  gSA lkèkkj.kr% blh izdkj osQ vadu dk izpyu gSA
              2-  ijUrq in fo'ys"k.k esa vadu izfØ;k Hkh fHk gSA blosQ vUrxZr in dk vadu fd;k tkrk gS fd lewg
                  osQ fdrus Nk=kksa us ml in dks lgh fd;k gSA bl izdkj osQ vadu dh x.kuk Nk=kksa osQ lgh djus osQ vuqikr
                  vFkok Nk=kksa osQ lgh djus dh izfr'kr esa dh tkrh gSA
            oSQyh osQ foHkktu lÙkkbZl (27) izfr'kr mPp vkSj lÙkkbZl (27) izfr'kr fuEu izfofèk dk iz;ksx mijksDr
            rkfydk esa fd;k x;k gSA bl fofèk osQ vUrxZr mÙkj i=kdksa dks muosQ izkIrkadksa osQ vkèkkj ij vkjksgh&vojksgh
            Øe esa O;ofLFkr djosQ Åij osQ 27 izfr'kr mÙkj i=kd vyx dj fy;s tk;sa ftUgsa mPp oxZ dgsaxs vkSj ry
            osQ 27 izfr'kr vyx djosQ fuEu oxZ dgk tk;sxkA

            mPp rFkk fuEu lewg }kjk inksa osQ ikl djus osQ vuqikr vFkok izfr'kr dh x.kuk djuk
            (Calculation of Proportion or Percentages Passing items by High and Low
            Groups)

            inksa dks lgh djus okys Nk=kksa dh x.kuk mPp vkSj fuEu lewg }kjk vyx&vyx dh tkrh gSA bldk vFkZ ;g
            gS fd izR;sd in dks lgh djus dk vuqikr mPp oxZ vkSj fuEu oxZ osQ fy, vyx&vyx Kkr fd;k tk;sxkA
            lgh vuqikr dh x.kuk esa vuqeku ls lgh djus osQ lw=k dk Hkh iz;ksx lkFk&lkFk dj ldrs gSaA blesa fxyiQksMZ
            vFkok Msfol osQ lw=k dk iz;ksx djuk vfèkd mi;qDr jgrk gSA bl rF; dk foospu ,d mnkgj.k dh lgk;rk
            ls mijksDr iafDr;ksa esa fd;k tk pqdk gSA

            mPp oxZ osQ lgh djus osQ vuqikr P rFkk fuEu oxZ osQ lgh djus osQ vuqikr P  ls izxV djrs gSaA lw=k bl
                                       h                               1
            izdkj gSμ


                                        P  =                                           ...(1)
                                         h
            tcfdμ       R= in dks lgh djus okys Nk=kksa dh la[;k

                       W= in dks xyr djus okys Nk=kksa dh la[;k
                        n = in esa fodYiksa dh la[;k
            rFkk       P = mPp oxZ osQ in lgh djus okyksa dk vuqikr
                        h
            blh izdkjμ


                                        P  =                                           ...(2)
                                         1

            tcfdμ       R= in dks lgh djus okys Nk=kksa dh la[;k
                       W= in dks xyr djus okys Nk=kksa dh la[;k
                        n = in esa fodYiksa dh la[;k
            rFkk       P = fuEu oxZ osQ in lgh djus okyksa dk vuqikr
                        1


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