Question # 1

The geometric mean of the a observations 2,4,8, is:

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2

8

4

no geometric mean

A histogram is g group/ set of adjacent:

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squares

circles

rectangle

cube

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 A∪ B is equal to.

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A

B

∅

B∪ A

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

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4

8

16

0

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

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}

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)

O∩ E = ....................

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∅

O

E

Z

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

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∅

O

E

Z

(A∩B)'= _____________

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A'∪B'

A'∩B'

A∩B

A∪B

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

A set with no element is called.

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Subset

Empty set

Singleton set

Super set

If number of elements in set, A is 3 and in set B is 2 then number of binary relations in A x B is:

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2³

2⁶

2⁸

2²

Which of the following is complete description of Real numbers?

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N∪ W = R

O∪ E = R

P∪ Q = R

Q∪ Q' = R

Which of the following is true?

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W⊆ N

Z ⊆ W

N ⊆ P

P ⊆ W

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

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