Question # 1

If x∈ U and x∉ A, then {x} is equal to ....................

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U^c

A^c

∅^c

A - U

A set containing no element is called.

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subset

Empty set

Singleton set

Super set

Formula to determine the size of a class is:

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X_max - X_min

X_max + X_min

Range/number of groups

number of groups/Range

Which of the following is distributive property intersection over union?

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A∪ (B ∪ C) = A∪ (B∪ C)

A∩ (B∩C)= (A∩B)∩C

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

The set having only one element is called:

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Null set

Power set

Singleton set

Subset

Which of the following is commutative law?

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A∪ (B ∪ C) = (A∪ B)∪ C

A∩ (B∩C)= (A∩B)∩C

A∪ B = B ∩ A

(A ∪ b)^c = A^c ∩ B^c

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

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Set

Relation

Function

Info function.

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

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4

6

8

9

If f is a function from A to B, then f is onto function if:

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Range f≠ A

Range f = B

Dom f = A

Second element of all ordered pairs contained in f is not repeated.

(A∩B)'= _____________

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A'∪B'

A'∩B'

A∩B

A∪B

If A is subset of U, then (A^c)^c= .........

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A

A^c

U^c

∅

The relation R = {(1,2),(2,3),(3,3),(3,4)} IS:

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Not a function

Onto function

One-One function

Into function

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

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A

B

∅

B∪ A

If f is a function from A to B, then f is one - one function if:

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Range f≠ A

Range f = B

Dom f = A

Second element of all ordered pairs contained in f is not repeated.

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

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1

2

3

4

Sum of the deviations of values x from its mean is always ''i.e ∑(x-x̅)’is to equal:

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itself

zero

median

mode

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