Question # 1

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

The point (-5,-7) lies in ........ quadrant.

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I

II

III

IV

A subset of A x A is called.................. in A.

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Set

Relation

Function

Info function.

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

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3

4

12

7

U' = ________________

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U

A

A'

φ

If { x|x=p/q, q≠0,p,q∈Z} then this is a _____________

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Set of even numbers

Set of rational number

Set of irraional numbers

Set of integers

If A= {1,2,3} , B ={4,5} and R+{(1,4),(2,5),(3,4)} then R is __________

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One - one function from A to B

A function A to A

Not a funtion

An onto function from A to B

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

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I

II

III

IV

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

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{1,2}

{1,2,100}

{2}

{2,1}

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

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into function

onto function

bijective function

function

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

Which of the following is De-Morgan's law?

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(A∪ B)∪ C = A∪ ( B∪ C)

(A∩B)^C= A^c∪ B^c

A∪ (B∩ C) = ( A∪ B)∩ (A∪ C)

A∩(B∪ C) = (A∩B)∪(A∩C)

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

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3

4

7

12

The complement of∪ is................

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∪

∅

impossible

Union

The set having only one element is called.

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Null set

Power set

Singleton set

Subset

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

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A function

Not a function

Range

Domain

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

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