Page:5
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'STATISTICAL ASSISTANT GR II -ECONOMICS AND STATISTICS' And exam conducted in the year 2015. And Question paper code was '011/2015/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
Home Page
5 of 8
QuestionS6-1f
-rcos@ and y=rsin@ with r>0,0<0 <4, then dxdy is:
Avr? dro
B:-0 68
"9
D:-rard ഒ
Correct Answer:- Option-D
(Question 7="The characteristic function of a standard normal variate is:
Cre?
Del
Correct Answer:- Option-A
‘Question58-Francis Galton is pioneered in the study of:
AvBiometry
B:-Genetics
CeRegression
D:-Correlation
Correct Answer:- Option-C
‘Question59:The correlation coefficient of the bi variate data: (1,10), (2,9), (3,8) and (4,7) is
۸1
Bel
೦:೦6
D:-None of these
Correct Answer:- Option-B
Question60-Let rx,y)=0.8. Then the explained variation in y due to x is:
۸8096
6
6
D:-70%
Correct Answer: Option-B
Question 1-1f both regression coefficients are positive, then their sum is always:
Aral
B:-Lies between 1 and 2
Cre 2
D:-None of these
Correct Answer:- Option-D
‘Question62:"The line of best fit can be obtained by the principle of:
AvLeast squares
B:-Moments
C+Mixed moments
D:-Minimum chi-sqare
Correct Answer:- Option-A
‘Question6 3:"The coefficients of determination is the square of:
Avr
Ber
Celtr
Correct Answer:- Option-A
Questions 4-1Frez.y)=0.5, then (22 2 ys.
جم
1-0
೦೫೦೫
026
Correct Answer:- Option-B
Question6 5:Probable error is used to test:
Ar Observed correlation coefficient
B:-Regression coefficients
CeRank correlation
D:-Consistency
Correct Answer:- Option-A
Question66:Let X be the number of successes follow B(n,p), then the distribution of failures follow:
A:Banp)
B-B(n, 1-p)
மிர யு,
D:-None of these
Correct Answer:- Option-B
Question6 7-Let X follows B(n,p) is positively skewed if :
കി
एणा
Correct Answer:- Option-A
Question6 Correlation coefficient between the number of successes and failures in B(n,p) is:
۸1
Bel
co
D:-None of these
Correct Answer:- Option-B
Question6 9:Let X follows B(n,p) and define ‘Then Var(¥) is:
ig
கறை
http://192.168.1.6/psc/modules/marklist/answer_sheet/pr.
07/07/2015 02:59 PM