Page 85 - DECO504_STATISTICAL_METHODS_IN_ECONOMICS_HINDI

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

uksV
vad Nk=k la[;k lap;h vko`fÙk okLrfod oxZ lhek,¡
1—5 7 7 0.5—5.5
6—10 10 17 5.5—10.5
11—15 15 32(c) 10.5—15.5
16—20 30(f) 62 15.5—20.5
21—25 22 84 20.5—25.5
26—30 20 104 25.5—30.5
31—35 18 122 30.5—35.5
N = 122

N
eè;dk la[;k = Size of th item
2
122
= = 61th item
2
lap;h vko`fÙk;ksa osQ fujh{k.k ls Kkr gksrk gS fd 61oha bdkbZ 16—20 okys oxZ esa gS vr% eè;dk oxZ
(16—20) ;k oxZ (15.5—20.5) gksxkA
i 5
M= l + 1 m − c = ( 15 5 + ) . ( 61 32)
−
f 30
5 29
= 15 5. + × 29 = 15 5 + . = 15.5 4.83
30 6
M = 20.33

Lo&ewY;kadu (Self Assessment)

2- fuEufyf[kr izuksa dks gy dhft, &
1. fuEu leadksa ls eè;dk (M) Kkr dhft,μ
Sizes : 22 21 12 15 17 18 18 20 19 1 6 25
2. fuEufyf[kr leadekyk ls eè;dk] cgqyd ekè; Kkr dhft,μ
Height (in inches) : 50 51 52 53 54 55 56 57 58
No. of Students : 15 20 32 35 33 22 20 10 8
3. fuEufyf[kr leadksa ls eè;dk rFkk cgqyd Kkr dhft,μ
Size : 8 10 12 14 16 18 20
Frequency : 3 7 12 28 10 9 6
4. fuEu leadksa ls eè;dk (M) rFkk cgqyd Kkr dhft,μ
5 4 8 3 7 2 9

LOVELY PROFESSIONAL UNIVERSITY 79