Question # 1

Range for the data 110,109,84,89,77, 104,74,97,49,59,103,62 is.....

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41

51

61

71

One and only one circle can be drawn through _______ non-collinear collinear points:

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One

Two

Three

Four

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9

7

5

3

The measure of the external angles of a regular hexagon is:

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2

1

Tangent drawn at the ends of diameter of a circle of___________ to each other:

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parallel

perpendicular

collinear

none parallel

In a set of data 41,43,47,51,57,52 ,59 median is:

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51

47

52

None of these

The discriminant of x²-3x+3=0 is:

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-3

3

-2

2

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}

The positive square root of mean of the squared deviation of X,{1=1,2,3,.......n) observations from their arithmetic mean is called.

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Harmonic mean

Range

Standard deviation

Variance

In ax²+b+c, the co-efficient of x is:

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b

d

c

a

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1+Cot² θ

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Sin²θ

Cos²θ

Cosec² θ

Sec²θ

The discriminant of quadratic equation is:

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b²-4ac

-b²+4ac

The observation that divide a data set into four equal part, are called.

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Decites

Quartiles

Percentiles

Mode

A circle of radius 'r' has area:

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πr²

2πr

2πr²

1/2πr

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