Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Research Officer - Economics and Statistics ' And exam conducted in the year 2021. And Question paper code was '123/2021'. 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.
123/2021
Maximum : 100 marks
Time : 1 hour and 15 minutes
1. ھ method of data collection which is free from sampling errors?
(A) Census Survey (B) Sample Survey
(C) Quota Sampling (D) Allof the above
2. The variance of the mean of a sample from a systematic sampling inflates if correlation
between units in the sample is:
(A) Positive (B) Negative
(C) Zero (D) Allof the above
3. Which of the following statement is true for cluster sampling?
(A) Cluster sampling will be efficient if the variation between cluster means is as
large as possible while variation within the clusters is as small as possible
(B) Cluster sampling will be efficient if the variation between cluster means is as
small as possible white variation within the clusters is as large as possible
(C) Cluster sampling will be efficient if the variation between cluster means and
within the clusters are as small as possible
(D) None of these
4. n classification, the data are arranged according to:
(^) Differences ) Resemblance
(C) Ratios (D) Allof the above
5. The heading of rows given in the first column of a table are called :
(^) Titles (B) Captions
(C) Stubs () Sub title
6. n exclusive and inclusive classifications, the data are classified according to :
(^) Class width (B) Mid value
(C) Frequency (D) Class intervals
A 3
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