| 1 |
A set Q = {a/b} a, b∈ Z ^ b≠ 0} is called a set of. |
- A. Whole numbers
- B. Natural number
- C. Irrational numbers
- D. Rational numbers
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| 2 |
y co-ordinate of every pint on x-axis is. |
- A. +ve
- B. -Ve
- C. zero
- D. 1
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| 3 |
If R= { (a,2),(b,3),(c,3) }, then Dom R = ________________ |
- A. {1,2}
- B. {1,2,3}
- C. {a,b,c}
- D. {a,c}
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| 4 |
Formula to determine the size of a class is: |
- A. X<sub>max</sub> - X<sub>min</sub>
- B. X<sub>max</sub> + X<sub>min</sub>
- C. Range/number of groups
- D. number of groups/Range
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| 5 |
If A has two elements and B has 3 elements, then number of binary relations in A x B is __________ |
- A. 2 x 3
- B. 2<sup>3</sup>
- C. 2<sup>6</sup>
- D. 2<sup>2</sup>
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| 6 |
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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| 7 |
Venn diagram was first used by...................... |
- A. John Venn
- B. Netwon
- C. Arthur Cayler
- D. John Napier
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| 8 |
A subset of A x A is called.................. in A. |
- A. Set
- B. Relation
- C. Function
- D. Info function.
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| 9 |
The Range of R<div>={(1,3),(2,2),(3,1)(4,4)} is.</div> |
- A. {1,2,4}
- B. {3,2,4}
- C. {1,2,3,4}
- D. {1,3,4}
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| 10 |
(A∩B)'= _____________ |
- A. A'∪B'
- B. A'∩B'
- C. A∩B
- D. A∪B
|