Question # 1

If a:b = x:y, then alternando property is:

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During frequency distribution number of groups should be between........

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5 and 10

10 and 15

10 and 20

5 and 15

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

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3

4

12

7

A collection of well-defined distinct objects is called.

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subset

Power set

Set

None of these

Co sec 60^o = ...................

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1/2

√3/2

2

2/√3

A histogram is g group/ set of adjacent:

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squares

circles

rectangle

cube

A tangent line intersects the circle at:

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Three points

Twopoints

Single point

No point at all

A'=_____________

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{x|x∈U^x∉A}

{x|x∈U^x∈A}

{x|x∉U^x∈A}

{x|x∉U^x∉A}

Acute angle is:

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80°

60°

90°

120°

The mean of the squared deviations of x1,(i = 1,2.........,n) observations from their arithmetic mean is called.....................

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Variance

Standard deviation

Range

Mode

The distance of any point of the circle to its centre is called:

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Radius

Diameter

A chord

An arc

The complement of∪ is................

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∪

∅

impossible

Union

Formula to determine the size of a class is:

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X_max - X_min

X_max + X_min

Range/number of groups

number of groups/Range

In a unit circle, cosθ = ___________

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y

x

y/x

None of these

Cube roots of -1 are:

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