Question # 1

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

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Proper fraction

Rational fraction

Improper fraction

Irrational fraction

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

The tangent and radius of a circle at the point of contact are:

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Parallel

Not perpendicular

Perpendicular

The harmonic mean of the observation 0,15,12, is:

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3.7

7.3

6.7

no harmonic mean

A grouped frequency table is also called.............

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Data

Frequency distribution

Frequency polygon

Histogram

Sin²θ +Cos²θ =..................

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tan²θ

Cos²θ

1

0

A cumulative frequency table is also called.....................

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Frequency distribution

Data

Less then cumulative frequency distribution

Histogram

The spread or scatterness of observations in a data set is called:

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Average

Dispersion

Central tendency

Power set of empty set.

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∅

{a}

{∅,{a}}

{∅}

tan 30^o=...................................

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1/2

√3/2

√3

1/√3

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A∩ A^c= ...........................

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∪

A^c

∅

A

7-7h = 0, then h = :

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7

1

0

49

Two tangents drawn to a circle from a point outside it are of _________ in length

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Half

Equal

Double

Triple

π/3 radians =..............................................

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30^o

45^o

60^o

90^o

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10th Class Mathematics English Medium KPK Boards Online MCQ's MCQs With Answers

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