Question # 1

The value obtained by reciprocating the mean of the reciprocal of x₁,x₂,x₃..............x₁₁ observation is called....................

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Geometric mean

Median

Harmonic mean

S.D

The spread of observations in a data set is called.

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Average

Dispersion

Central tendency

Mean

Solution set of equation 5x²-125 = 0 is:

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{5}

{10}

{-5}

If an arc of a circle subtends a central angle of 60°, then the corresponding chord of the arc will make the central angle of:

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20°

40°

60°

80°

7-7h = 0, then h = :

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7

1

0

49

The straight line that bisect the circle is called:

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Sector

Radius

Diameter

Segment

Equation is 2x⁴-3x³+7x²-3x+2=0 called:

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Reciprocal

Radical

Exponential

None

A line which has only one point in common with a circle is called:

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Sine of a circle

Cosineof a circle

Tangentof a circle

Secantof a circle

The n^th positive root of the product of the x₁,x₂,x₃..................x_n observations is called:

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Mode

Mean

Geometric mean

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

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Frequency

Average

Mode

Median

The nature of the root of equation x²-5x+5=0

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Rationaland equal

Irrationaland unequal

Irrationaland equal

Rationaland unequal

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

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The some of cube roots of unity is:

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Zero

One

Two

Three

Mean of a variable with similar observations any constant k is:

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Negative

k itself

Zero

The locus of a moving point P in a plane which is always equidistant from some fixed point 0 is called:

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Segment line

Radial segment

Circle

Circumference

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Proper fraction

Improper fraction

Irrational fraction

Rational fraction

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