Question # 1

Number of elements in power set of {1,2,3}

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4

6

8

9

A collection of well-defined distinct objects is called.

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subset

Power set

Set

None of these

Formula of variance is group data is:

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The portion of circumference of a circle is:

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Radius

Chord

Arc

Segment

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 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}

A tangent is perpendicular to the radius of a circle at its point of:

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Tangent

Touch

Contact

Meet

Throught how many non-collinear points a circle can pass ?

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One

Two

Three

Four

Mean is affected by change in:

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Value

Ratio

Origin

The medians of equiangular triangles are proportional to their corresponding:

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Sides

Angle

Point

Altitude

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1

In a : b : : b : c, b is called:

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Meanproportional

Thirdproportional

Continuedproportional

Fourthproportional

Sec 30^o = .....................

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1/2

√3/2

2

2/√3

If a : b = c :d, than a - b : b = c - d : d is called theorem of :

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Componendo

Dividendo

(a) & ( b)

Invertendo

The mean of the squared deviations of x_i (i = 1, 2, -----------------,n) observations form their arithmetic mean is called:

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Variance

Standard deviation

Range

If two cords of a circle (of of congruent circles) are equal, then their corresponding arcs (minor, major or semi circular) are:

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Proportional

Equal

Congruent

Bisecting chords

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