D 12459 (Pages : 4) തതം;

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THIRD SEMESTER B.A. DEGREE EXAMINATION, NOVEMBER 2016
(CUCBCSS—UG)
371 Core Course—Economics
ECO 3B 03—QUANTITATIVE METHODS FOR ECONOMIC ANALYSIS—I
Time : Three Hours . Maximum : 80 Marks
Section A (Objective Type) ۱
Answer all questions.
Each question carries ¥ mark.
> 1. [५५] -16=0, the value of x is
൮ 6. (1) 2.
ദ്ധ 3. (iv) 1.
2. For a matrix A, AT =A, the matrix is, matrix.
(i) Symmetric. (ii) Skewsymmetric.
(iii) Orthogonal. (iv) Identity.
3. log, b x log, a =
(i) 0. (i) 1.
(iii) log a — log b. (iv) None of these.
4. The order of a matrix A is m x n, that of B is n x g then the order of AB is —
5 (i) nxn. 61) മ്മാ.
(ம்‌) 7௩%. (iv) nxq.
5. When TR = 100 - Gi) 100. (ii) - 2x.
(क) - 3. (iv) None of these.
6. Which of the following is a positional average ?
(i) Harmonic mean. (ii) Geometric mean.
(iii) Median. (iv) None of these.

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