Question # 1

If { x|x=p/q, q≠0,p,q∈Z} then this is a _____________

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Set of even numbers

Set of rational number

Set of irraional numbers

Set of integers

The number of elements of the power set {a,b} are.

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1

2

3

4

Which of the following is De-Morgan's law?

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(A∪ B)∪ C = A∪ ( B∪ C)

(A∩B)^C= A^c∪ B^c

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

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:

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2³

2⁶

2⁸

2²

The formula of group data of the median is:

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l + h/f (n/2 -c)

l +∑fx/∑f x n,

l + f_m- f₁/2f_m - f₁ - f₂ x n,

A + ∑fu/∑f x n

Which of the following is true?

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W⊆ N

Z ⊆ W

N ⊆ P

P ⊆ W

The Range of R

={(1,3),(2,2),(3,1)(4,4)} is.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

The geometric mean of the a observations 2,4,8, is:

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2

8

4

no geometric mean

Number of elements in power set of {1,2,3}

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4

6

8

9

A collection of well-defined distinct object is called:

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Subset

Power set

Set

None of these

If set has 3 and B has 2 elements then number binary relations of A x B.

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2²

2⁸

2⁶

2³

if A and B are disjoint sets , then A∪ B is equal to.

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A

B

∅

B∪ A

A set having only one member.

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Empty set

Power set

Singleton set

Sub set

A subset of A x A is called.................. in A.

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Set

Relation

Function

Info function.

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