Question # 1

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.

O∪ E = ................

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∅

O

E

Z

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

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A - B

A^c

A∩ B

B^c

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

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U^c

A^c

∅^c

A - U

If A has two elements and B has 3 elements, then number of binary relations in A x B is __________

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2 x 3

2³

2⁶

2²

The relation {(a,b),(b,c),(a,d)} is....................................

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A function

Not a function

Range

Domain

x-coordinate of every pint on x-axis is.

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+ve

-ve

zero

1

If A and B are disjoint sets then AUB is equal to:

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A

B

BUA

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

A∩ A^c= ...........................

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∪

A^c

∅

A

If number of elements in set A is 3 and in set B is 4 then number of elements in AxB is:

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3

4

12

7

Power set of empty set.

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∅

{a}

{∅,{a}}

{∅}

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

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A∪ B

A∩ B

A - B

B - A

If B={1,2,100} and C = {2,100}, then B∩C = ________

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{1,2}

{1,2,100}

{2}

{2,1}

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)

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Mathematics 10th Class English Medium Unit 5 Online Test MCQs With Answers

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