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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.

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Correct Answer:- Option-C

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:

شمبھ

Bee?

Cre

Dee? te

Correct Answer:- Option-A

Question? 1Referring to Question 50, EQ/U=3) is:

கம்

3

5

3

6

5

Correct Answer:- Option-D

Question72« i

5] 5

D:-None of these

Correct Answer:- Option-D

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

Correct Answer:- Option-A

Question74-1FX follows N(1O,

Avda

Beda

4), then the standard deviation of aX is:

००२

D:-None of these

Correct Answer:- Option-D

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

Correct Answer:- Option-A

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

Are

caret Asner Option

ர டட. ம...

கரியான்

நவ்

Exner 1 nor

Denna of tesa

Cort ser 4اوہ

Question78-If X and Y are independent N(0,1) random variates, then P(X

००

பல

bates

0-0

Question79:-The Normal curve has an area about .......within one unit of SD from mean:

22008

ध

௦௮௯

bear

Carer Answer Option 8

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

سس و وت

00و Correct

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

(श

भ

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