Old Exam Papers June 2012 (Set 2)

fuEu lehdj.k dks gy dhft;s %
2
x 45x 324 0
6. Obtain the Regression equation of X on Y and find the most
probable value of X if Y = 90 with the help of following
data :
X Y
Mean 18 100
Standard deviation 14 20
Coefficient of correlation +.8
X dh Y ij izrhixeu js[kk Kkr dhft;sA fuEu leadksa dh
lgk;rk ls X dk loksZÙke vuqekfur ewY; Kkr dhft;s ;fn
Y = 90 gks %
X Y
vkSlr 18 100
izeki fopyu 14 20
lglEcU/k xq.kkad +.8
7. Calculate Fisher's Ideal Index No. from the following
data :
200 6 EEC-03
Or
Twenty balls are marked with serial nos. and placed in a
bag. Find the chance that the first drawn ball is a multiple
of 3 or 5.
20 xsansa ,d FkSys esa Øekuqlkj j[kh xbZ gSaA izFke ckj fudkyh
xbZ xsan dh 3 ;k 5 dk xq.kd gksus dh D;k izkf;drk
gksxh \
Part-B
Hkkx-c
Attempt any four questions from
Part-B. Each question carries 7 marks.
Hkkx&c esa ls fdUgha pkj iz'uksa ds mÙkj nhft;sA
izR;sd iz'u 7 vad dk gSA
4. What points should be kept in mind in construction of
graph ?
fcUnq js[kh; izn'kZu djrs le; fdu&fdu ckrksa dk /;ku j[kuk
pkfg, \
5. Solve the following equation :
2
x 45x 324 0
EEC-03 5 PTO