Page 281 - DSOC404_METHODOLOGY_OF_SOCIAL_RESEARCH_HINDI

bdkbZµ28% fopyu dh eki % ekud fopyu

= 12.24 uksV

= 3-5 (yxHkx)

(l) v[kafMr ;k lrr Js.kh (Continuous Series)

mnkgj.k 6% fuEufyf[kr lkfj.kh esa ,d uxj esa fofHkUu esa vk;q oxZ esa tula[;k forj.k dks izn£'kr
fd;k x;k gSA bldk ekud fopyu (S.D.) Kkr dhft,A

vk;q oxZ la[;k (gtkjksa esa)

0µ10 18
10µ20 16
20µ30 15

30µ40 12

40µ50 10
50µ60 5
60µ70 2

70 ls Åij 1

izR;{k fofèk }kjk gyµizR;{k fofèk esa gedks lrr Js.kh dks [kafMr Js.kh esa cnyuk gksrk gS blosQ fy, fn,
∑ fd 2
x, oxZ varjkyksa osQ eè;&¯cnq Kkr dj ysrs gSa vkSj fiQj σ = lw=k dk iz;ksx djrs gSaA
N

ekè; ¾ 27 ls
2
vk;q oxZ oxk±rjksa dk vko`fÙk oxkZUrjksa osQ eè;eku fd fd =
C.T. eè;eku (x) (f) B × x dk fopyu (d) = f × d fd × d

0–10 5 18 90 – 21 – 378 7938
10–20 15 16 240 – 11 – 176 1926
20–30 25 15 375 – 1 – 15 15

30–40 35 12 420 + 9 108 972
40–50 45 10 450 + 19 190 3610
50–60 55 5 275 + 29 145 4205

60–70 65 2 130 + 39 78 3042
70–80 75 1 75 + 49 49 2401

2
N (åf) = 79 åfx = 2055 åfd = 24119

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