10.

11.

12.

(0) ey (ii)
(iii) we (iv)
. Quartile deviation is
0 ಇಇ (ii)
2
(ii) SS. (iv)

Mean of a symmetric distribution is 8. The mode is

6) 8. (11)

(क) 2. (iv)

2 D 12459
. The presence of extreme observations affects
(i) Arithmetic mean. (1) Mode.
(iii) Median. (iv) None of these.
. For aset of N observations, median class is the class in which observation is lying ?

Gy.

None of these.

4.

0.

If X and Y are perfectly obeys the equation 2x + 5y — 2 = 0, the correlation between X and Y

is
(1) +41. (ii)
(ऋ) 0. (iv)
The regression coefficient of y on x is
। 0०००१) ;
(1) 50೧7) 7 (ii)
.. Cov, Y) ಟೆ
(iii) "oe. (iv)

None of these.

Cov (X, Y)
80% `

None of these.
(12 x 4% = 6 marks)