Question # 1

The number of elements in the power set of {1,2,3,4}.

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4

8

16

0

the set {0,±1,±2,±3,........} is:

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Set of natural numbers

Set of whole numbers

Set of prime numbers

Set of integers

(A∩B)'= _____________

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A'∪B'

A'∩B'

A∩B

A∪B

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

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1

2

3

4

A∩ A^c= ...........................

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∪

A^c

∅

A

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)

(A∪B)∪C is equal to

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A∩ (B∪C)

(A∪B)∩C

A∪(B∪C)

A∩ (B∩C)

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 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

If A⊆ B then A∪ B is equal to

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A

B

∅

None of these

Power set of an empty set is:

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{a}

Point (-1,4) lies in quadrant:

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I

II

III

IV

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

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U^c

A^c

∅^c

A - U

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

When the number of observations of a set of data is even then the median formula is:

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By definition, which of the following is a set?

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{a,b,c,d}

{1,2,3,2}

{l,m,n,o}

{0,1,2,3,1}

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