## Kerala PSC Previous Years Question Paper & Answer

Question Code : A

Page:8

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Statistical Assistant Grade II/ Statistical Investigator Grade II - Statistical Assistant Grade II/ Statistical Investigator Grade II ' And exam conducted in the year 2022. And Question paper code was '065/2022'. 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: 8 out of 16
Excerpt of Question Code: 065/2022

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A problem in Statistics is given to 2 students A
the problem. What is the probability that the pro

& B and they have equal chance to solve
blem is solved ?

(A) 1/4 (B) 12
(൭ 3/4 (D) 0
If X ~ B(n, ற, then the distribution of Y =n - X is
(^) Ba, 1) (8) 80൨൯൬
The mode of the Geometric distribution p(x) = (1/2)*, x 1, 2, ...... is
(A) 0 (B) 12
(೮) 1 (2) does not exist
The point of inflexion of standard normal curve is
(A) +1 (B) -1
(೮) 0൦൨ &-1 ന) None

If T is a statistic which follows student’s with
distribution of T? ?
(^) Chi-square with 10 d.f.
(൭ Fwith1, 10 df (

Given the two lines of regression as 3x — 4y + 8
are

10 degrees of freedom, then what is the

(B) Chi-square with 20 d.f.

ற) Fwith 10,1 6.1

= 0 and 4x — 3y 1, the means of x & y

(A) 4,5 (B) 5,4
(C) 3,4 60) 4,3
The minimum variance of the unbiased estimator of 2, of Poisson distribution is
(A) ೩ ‏جم‎ 2/1
(൭ wh (D) None
The degrees of freedom for chi-square in case of contingency table of order 5 x 4 is
(A) 12 (B) 11
(൭ 10 (D) 9

HP

(A) 1

The number of possible samples of size n from

(A) ர!
(C) NP, (

sample of 9 items from an infinite population having SD6, yielded total scores as 160.
he standard error of sampling distribution of means is
(B) 2

D) 4

a population of N units with replacement

(B) NC,

D) ०