Kerala PSC Previous Years Question Paper & Answer
Page:13
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.
Correct Answer:- Option-C
Question62:-Sum of independent products of multivariate normal random vectors is
A:-Wishart Distribution
B:-Chi Square Distribution
C:-Hotelling 72
D:-Mahalanobis p?
Correct Answer:- Option-A
1 1 1
॥ ; | 2 | ١
Question63:-Let X be "3 (u, ۶( ۷۲٢ ممق ,11 2 11502511 1-2] ےپ 116
distribution of x: — 2x. — وھ
A:-v2(U, 2)
B:-N(u, 6)
C:-N(4, 14)
D:-N(4, 6)
Correct Answer:- Option-C
Question64:-Let ऋ, %2,..., X0 be a random sample of size 10 from w: (u, ೫). 7೧೮೧
the distribution of 21% - (4 7ھ 2)۴ - ٥ وز
AS
8:0
6:-۷۸۷ (2, 10)
D:-W(z, 5)
Correct Answer:- Option-A
Question65:-Let 4: and 4. are independently distributed with W(z, 2) and W(z, 5)
respectively. Then the distribution of 4: + 42 is
A:-W(z, 10)
B:-W(z, 2)
C:-W(z, 5)
D:-W(z, 7)
Correct Answer:- Option-D
Question66:-Multivariate Behrin Fisher's problem is
A:-Testing of Mean vector is equal to a given vector when the covariance
matrix is known
B:-Testing the equality of means of two multivariate populations when the
covariance matrices are equal
C:-Testing the equality of means of two multivariate populations when the
covariance matrices are not equal
D:-Testing of mean vector is equal to a given vector when the covariance