24.

25.

26.
27.

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3 D 31883

Section C (Long Essay Questions)

Answer any two questions.
Each question carries a maximum of 10 marks.

Define Linear Regression ? Briefly explain the estimation procedure of Principle of Ordinary Least
Squares.

The scores of two batsman A and B in ten innings during a certain season are :

A 1 28 47 63 71 39 10 60 96 14

B : 31 48 53 67 90 10 62 40 80
Find (using Co-efficient of Variation) which of the two batsmen A or B is more consistent in scoring.
Explain different types of functions and its applications in Economic analysis.

(i) Find the Inverse of a matrix :

12 3
1 3 5.
1 5 12

(ii) Solve using Crammer’s rule :
5 + + = 2
2४ - 3) = 23
(2 x 10 = 20 marks)

298268