1 |
The complement of∅ is........... |
- A. ∪
- B. ∅
- C. Impossible
- D. Union
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2 |
(A⋃B)⋃C = ________ |
- A. A ⋂ (B⋃C)
- B. (A⋃B)⋂C
- C. A⋃ (B⋃C)
- D. A⋂(B⋂C)
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3 |
If number of elements in set, A is 3 and in set B is 2 then number of binary relations in A x B is: |
- A. 2<sup>3</sup>
- B. 2<sup>6</sup>
- C. 2<sup>8</sup>
- D. 2<sup>2</sup>
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4 |
A set with no element is called. |
- A. Subset
- B. Empty set
- C. Singleton set
- D. Super set
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5 |
If A⊆ B then A - B is equal to |
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6 |
if A and B are disjoint sets , then A∪ B is equal to. |
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7 |
The number of element in power set {1.2.3} is. |
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8 |
A⊆ B then A-b = __________ |
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9 |
The formula of grouped data of the arithmetic mean is: |
- A. X̅ = ∑X/n
- B. X̅ = A + ∑fX/∑X
- C. X̅ = ∑fX/n
- D. X̅ = l +n/f (n/2 - c)
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10 |
If B={1,2,100} and C = {2,100}, then B<b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">∩</b><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: small;">C = ________</span> |
- A. {1,2}
- B. {1,2,100}
- C. {2}
- D. {2,1}
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