Question # 1

If R= { (a,2),(b,3),(c,3) }, then Dom R = ________________

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{1,2}

{1,2,3}

{a,b,c}

{a,c}

Power set of an empty set is:

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{a}

E - O = ..................

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∅

O

E

Z

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

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1

2

3

4

If R = {(0,0),(8,2),(10,3),(14,12)}, then Dom R = ___________

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{0,8,10,14}

{0,2,3,12}

{8,10,4}

{0,10}

The measures that are used to determine the degree or extent of variation in a data set are called:

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central value

A.M

measures of dispersion

median

A'=_____________

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{x|x∈U^x∉A}

{x|x∈U^x∈A}

{x|x∉U^x∈A}

{x|x∉U^x∉A}

If two sets have some elements common but not all are called......... sets

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Sub

OVERLAPPING

Disjoint

Super

A set containing no element is called.

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subset

Empty set

Singleton set

Super set

Which of the following is true?

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W⊆ N

Z ⊆ W

N ⊆ P

P ⊆ W

The formula of grouped data of the arithmetic mean is:

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X̅ = ∑X/n

X̅ = A + ∑fX/∑X

X̅ = ∑fX/n

X̅ = l +n/f (n/2 - c)

Point (-1,4) , lies in the quadrant.

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I

II

III

IV

y co-ordinate of every pint on x-axis is.

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+ve

-Ve

zero

1

The Range of R is, if R = {(1,3),(2,2),(3,1),(4,4)}.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

The domain of R = {(0, 2), (2, 3), (3, 3), (3, 4)} is:

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{0, 3, 4}

{0, 2, 3}

{0, 2, 4}

{2, 3, 4}

Venn diagram was first used by......................

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John Venn

Netwon

Arthur Cayler

John Napier

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