31.

32.

33.

35.

36.

4 C 31198

1 2
If A=|2 1 2], show that A?- 4A-51=0.
one ie

Write a note on rank correlation co-efficient.
(6 x 5 = 30 marks)
Section D (Essay Type)

Answer any two questions.
Each one carries 12 marks.

Using Cramer’s rule solve the equations to get the values of x, y and z.
2a+y+z=1
x-y+4z=0
x+2y-2z=3 8

. Define Kurtosis. How is it measured ? Find the co-efficient of Kurtosis based on quartiles to the

following data :
Class 8 1-5 6-10 11-15 16-20 21-25 26-30 31-35
Frequency : 3 4 68 30 10 6 2

‡ 2 3
Matrix A is given by A=|5 7 4|, show thatAA7=I.
‏کے و کڈ‎

Find the regression lines and predict the value for x, when y = 90 and the value of y when x = 100. ©
೫ 65 66 67 67 68 69 70 72

2 5 67 68 65 68 72 72 69 71
(2 x 12 = 24 marks)