Kerala PSC Previous Years Question Paper & Answer
Page:10
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Statistician' And exam conducted in the year 2023. And Question paper code was '021/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. 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.
the case of regression estimation, then the condition for same cost is
4cc’
م
A: = (61௦255
தில 4८८
B:- (24095
4८८“
Cc: oe (6-015
# Acc
ற.” “6-5:
Correct Answer:- Option-B
Question48:-In SRSWOR sample mean square is an unbiased estimate of population
A:-Variance
B:-Mean square
C:-Mean
D:-Standard error
Correct Answer:- Option-B
Question49:-Sampling Variance due to post stratification.
A:-increases
B:-remains same
C:-decreases
D:-halves
Correct Answer:- Option-A
Question50:-In medical practices, there are some diseases which are yet to be
under research, person having such diseases can be identified be some references.
Such type of sampling is known as
A:-Gibbs Sampling
B:-Convenience Sampling
C:-Judgement Sampling
D:-Snowball Sampling
Correct Answer:- Option-D
Question51:-Let X be a random variable with pdf f(x) = «23 ex X > 0. The value of K
is
ساد cabo ام
ए 0५2
Correct Answer:- Option-B
Question52:-Let X and Y be two independent geometric random variables. The