## Kerala PSC Previous Years Question Paper & Answer

Title : STATISTICAL ASSISTANT GR II -ECONOMICS AND STATISTICS
Question Code : A

Page:4

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.

page: 4 out of 8
Excerpt of Question Code: 011/2015/OL

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D:-None of these

‘Quostont3-A problem in statistics s given to students A,B and C whose chances of solving tare 4, 3 and + respectively. The probability that exactly one solves the problem
ag
me
or
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‘Question44:Which of the following statement is true 7
AvDisjoint events are independent
B:-Independent events may be disjoint
CBoth options 1 and 2
D:-None of these
(Question4 5:Five events are said to be mutually independent if they have to satisfy
۸6
20
೦:28,
2:32
Question’
1

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‘Two friends decided to meet between 2pm and 3pm with the proviso that one waits the other for at most 20 minutes. The chance of their meeting

B:

crs

‘Question4 7:Bayes" formula is used to obtain the probabilities of:
AvPosterior events
B:-Likelihood events
CePrior events
D:-None of these
Question48"The distribution which holds the property non correlation of random variables implies independence
AvBivariate normal
B:-Bivariate exponential
CBivariate Cauchy
D:-None of these
Question49:The Union Minister of Statistics and Program Implementation is:
‏بصعم‎ V. K. Singh
B:-Rajnath Singh
(CeSmriti Irani
D:-Venkia Naidu
Question50:The mean sum of squares is obtained by dividing the sum of squares by:
கடுக of the sample
B:-Degrees of freedom
CeSquared degrees of freedom
D:-Squared sample size
QuestionS1-The method of moment estimator for @ in a uniform distribution over [-0,0 ] with sample mean 10 and sample variance 4 is:
‏عم‎
‎Be2d
‎೦:10
‎2:0.
Question52:A consistent estimator of © in a Poisson distribution with parameter 0 is:
‘Ax-Square of sample mean
B:-Sample mean
C:-Sample variance

D:-Sample mean- sample variance
Question5 3:"The degrees of freedom associated to error sum of squares in one-way ANOVA having n observations and k treatments

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Questions!
۸0

‘The sum of all two digit numbers formed using the digits 1, 2, 3 and 4 if each digit is used exactly once is:

D:-None of these
QuestionS5:The moment generating function M(t) of a random variable X exists at:
‘ArAny real value of t
B:
C+Neighborhood of zero
D:-Deleted neighborhood of zero