## Kerala PSC Previous Years Question Paper & Answer

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

Page:6

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: 6 out of 8
Excerpt of Question Code: 011/2015/OL

Question70=IFX and Y are two independent Poisson variates with parameters 2 and 3 respectively and let U=X+Y. Then P(U=0) is:
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Question? 1Referring to Question 50, EQ/U=3) is:
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3
5
3
6
5

Question72« i

5] 5

D:-None of these
Question73-Which of the following statement about B(n,p) is always true?
‘Acttis under dispersed
Belt is over dispersed
C:Neither option nor option 2
D:-Both options 1 and 2 depend on values of p
Question74-1FX follows N(1O,
Avda
Beda

4), then the standard deviation of aX is:

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D:-None of these

Question75-1FX follows U(0,1), then Var(1-X) is:

Question76:The maximum height of N(0,1) curve is :
Are

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‎Question78-If X and Y are independent N(0,1) random variates, then P(Xad
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bates
0-0
Question79:-The Normal curve has an area about .......within one unit of SD from mean:
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bear

Question80:The mgf of a random variable X is M(t

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Question8 1:-The square of t distribution is an F distribution for:
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