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2 D 31883

14. FindA+Bfor A= a and B= 2 7
2 4 2 4

15. Define : (i) Skewness ; and (ii) Kurtosis.
Section B (Short Essay Questions )

Maximum marks in this section is 35.
Students can attempt all questions.
Each question carries a maximum of 5 marks.

16. Briefly explain different types of correlation.
17. Find (i) (5a7b) x 7ab* ; and (ii) 36x7y* + 4x%y.
18. Write ashort note on Measures of Dispersion.
19. What is meant by Inverse of the Matrix and point out important properties of an Inverse of a
matrix ?
20. Evaluate the following determinants :
4 0 2

6 .
8 2 3

ಅ
மே

(a)

حبر
يم

(b)

21. Calculate Correlation Co-efficient between X and Y for the following data :
% ; 1 2 3 4 5 6 7 8 9
xy: 9 8 10 12 11 13 14 16 15
22. Calcuate the Median from the following data :

Weight In gms. | 410 — 419] 420 — 429 | 430 - 489 |440 — 449] 450 — 459] 460 — 469] 470 — 479

23. Distinguish between Correlation analysis and Regression analysis.

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