Question # 1

The total of frequency up to an upper class limit or boundary is called:

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frequency

class frequency

cumulative frequency

relative frequency

In a cumulative frequency polygon freqncies are plotted against.

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Midpoints

Upper class boundaries

Class limits

Frequency

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

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{a,b,c}

{b,c,d}

{a,b}

{a,b,c,d}

The number of time a value appears on a set of data is called:

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Frequency

Average

Mode

Median

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

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An equation system

A constant

A quadratic equation

An identity

The chord length of a circle subtending a central angle of 180° is always:

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Less than radial segment

Equal to the radial segment

Double of the radial segment

None of these

The D° M' S" form of 32.25° is:

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32°05°

32°10'

32°15'

32°20'

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

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Declies

Quartiles

Percentiles

Harmonic mean

Angle inscribed in a semi-circle is:

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How many tangents can be drawn from a point outside the circle ?

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1

2

3

The spread of observations in a data set is called.

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Average

Dispersion

Central tendency

Mean

2π radian = .......................

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0^o

90^o

180^o

360^o

The angle subtended by an arc at the circumference of a circle is called a:

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Acute angle

Circum angle

Abtue angle

Ascribe angle

ax²+bx+c=0, c is the:

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Co-efficient

Variable

Factors

Constant

Harmonic mean for 1,2,5,8,4 is....................

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6.08

5.08

7.08

4.08

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