1 
W  N = .................... 

2 
A and A<sup>c</sup>are.................................Set. 
 A. Universal
 B. Overlapping
 C. Disjoint
 D. Super

3 
If A⊆ B then A⋃ B = __________ 
 A. A
 B. B
 C. ∅
 D. None of these

4 
The formula of group data of the median is: 
 A. l + h/f (n/2 c)
 B. l +∑fx/∑f x n,
 C. l + f<sub>m </sub> f<sub>1</sub>/2f<sub>m</sub>  f<sub>1</sub>  f<sub>2</sub> x n,
 D. A + ∑fu/∑f x n

5 
O  E = ............ 

6 
A∩ A<sup>c</sup>= ........................... 
 A. ∪
 B. A<sup>c</sup>
 C. ∅
 D. A

7 
When the number of observations of a set of data is even then the median formula is: 

8 
If A⊆ B and B⊆ a , then 
 A. A = B
 B. A≠ B
 C. A∩ B =∅
 D. A∪ B =∅

9 
If number of elements in set A is 3 and in set B is 4 then number of elements in AxB is: 

10 
xcoordinate of every pint on xaxis is. 
 A. +ve
 B. ve
 C. zero
 D. 1
