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D 71754

Define Percentile,

Explain adjoint of g matrix,

Define Cofactor of a matrix.

Explain Cramer’s rule for solving linear equations.
What are the limitations of Statistics ?

If X= 345.02 x 273,43 x 496.56, find log X.

Describe frequency polygon.

Explain the use of Gini coefficient,

Describe Karl-Pearson’s co-efficient of correlation.
(10 x 2 = 20 marks)

Section C (Short Essay/Problem Type)

Answer any six questions.
Each question carries 5 marks,

Explain the origin and development of statistics.

Find the regression equation of X on Y for the following data :
30 36 34 39 40

85 92 92 95
marginal revenue and

x है 28 26 32 31 37

Y 75 74 82 81 90 88

What is the mathematical relationship among average revenue,

elasticity ?
Explain various measures of skewness.

Draw a histogram and frequency polygon for the following data :
0-5 5-10 10-15 15-20 20-25 25-30 30-35 85-40

Class
10 20 13 17 10 14 . 9

Frequency 7
Compute rank correlation coefficient for the following data :

48 36 52 41 58 13

60
89 55 49 62 47

75 51

x
Y