Kerala PSC Previous Years Question Paper & Answer
Page:2
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.
A:-0.5
B:-0.25
C:-0.167
D:-0.33
Correct Answer:- Option-D
Question6:-What is the probability of success in an event with both mean and
variance are found 4, assuming binomial distribution ?
A:-0
B:-1
(:-0 < 0 < 1
D:-0.5
Correct Answer:-Question Cancelled
Question7:-The points of inflexion of a normal curve are
൧:20
B:-ut20
C:-u+30
D:-u+0.5
Correct Answer:- Option-A
Question8:-The characteristic function for Cauchy distribution is
A:-.-5
8:-4-8
ರಂ
0:
Correct Answer:- Option-B
Question9:-x, = 1, if the . outcome is a success with p(success) = p
x, = 0, if the ,»* outcome is a failure with p(failure) = 0.
Then the distribution of random variables s, = 2x, where x, are independent is
as n tends to infinity.
A:-Uniform
B:-Binomial
C:-Asymptotically normal
D:-Exponential
Correct Answer:- Option-C
Question10:-A fair die is thrown 600 times find the lower bound for probability of
getting the number of sixes in between 80 and 120 assuming binomial distribution.
A:-0.5
B:-0.167