THIRD SEMESTER B.A. DEGREE EXAMINATION, NOVEMBER 2019
(CUCBCSS—UG)
Economics

ECO 3B 03—QUANTITATIVE METHODS FOR ECONOMIC ANALYSIS—I
Time : Three Hours ‏ہے‎ 80 ಜಾ

Section A (Objective Type)
Answer all questions.
Each question carries % mark.
1. If AAT =I, the matrix A is called
(a) Diagonal matrix. (b) Symmetric matrix.
(c) Orthogonal matrix. (d) Skew symmetric.
2. If | A|=0,the matrix Ais called
(a) Symmetric matrix. (b) Singular matrix.
(c) Non-singular matrix. (d) None of these.

8. The value of log 81 to base 3 is

(മ) 2. (9) 8.
(ट) 4. (6) 5.
4. 19 8 0051007181 89೮೫೩8೦.
(a) Mean. (b) Mode.
(c) Quartile. (d) None of these.

5. Adiagram of circle is
(a) Pie diagram. (b) Line diagram.
(©) Bar diagram. (d) None of these.

6. If 8x+2=18, the x is equal to:

(a) 2. ۱ (b) 4.

{c) 6. (6) 8.
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