Question # 1

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

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A

A^c

U^c

∅

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

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1

2

3

4

Which of the following is associative law of 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)

Coding formula of group data of the arithmetic mean is:

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X̅ = ∑fX/∑f

X̅ = ∑fD/∑f

X̅ = A + ∑fu/∑f x h

X̅ = A + ∑fu/∑f

The range of {(a,a),(b,b),(c,c) is ..............

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{a,b}

{a,b,c}

{a}

∅

W - N = ....................

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∅

{∅}

N

W

If set a has 3 elements and B has 4 then A x B has __________ elements.

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3

4

12

7

The set {x} x∈ A and x∉ B } is.......................

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A∪ B

A∩ B

A - B

B - A

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}

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

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U^c

A^c

∅^c

A - U

The total of frequency up to an upper class limit or boundary is called:

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frequency

class frequency

cumulative frequency

relative frequency

The relation {(1, 2),(2, 3),(3, 3),(3, 4)} is:

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Onto function

In to function

Not a function

One-one function

The formula of range is:

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X_max -X_min

X_max + X_min

groups/wight

none of these

A⋃(B⋂C) = ___________________

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(A⋃B) ⋂ (A⋃C)

A⋂ (B⋂C)

(A⋂ B)⋃ (A⋂C)

A⋃ (B⋃ C)

If f: A→ B and range of f= B , then f is an..............

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into function

onto function

bijective function

function

Formula of variance is group data is:

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