Question # 1

A part of the circumference of a circle is called:

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A segment

A sector

An arc

A radius

Line segment joining any point of the circle to the centre is called:

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Circumference

Diameter

Radial segment

Perimeter

Factors of 5x²-30=0 are:

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5x(x+6)

6x(x+5)

6x(x-5)

5x(x-6)

The perpendicular bisector of a chord of a circle passes through the:

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Centre

Radius

Diameter

Arc

If variance is equal to 36 then the standard deviation will be:

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36

6

-6

none of these

A set having only one member.

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Empty set

Power set

Singleton set

Sub set

In class (20-29), Midpoint or class mark is...................

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20.5

24.5

29

49

In degree measurement . 1' is equal to:

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1^o

60^o

90^o

360^o

Roots of the equation 4x²-5x+2=0 are:

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Irrational

Imaginary

Rational

None of these

The average pocket money of 30 students is Rs.20/- , The total amount in the class is:

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Rs.20/-

Rs.30/-

Rs.300/-

Rs.600/-

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

The symbol used to denote a second is:

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1°, 1'

1°

1"

1'

The union of two non-collinear rays, which have common end point is called:

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An angle

Degree

A minute

A radian

Coding formula of group data of the arithmetic mean is:

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X̅ = ∑fX/∑f

X̅ = ∑fD/∑f

X̅ = A + ∑fu/∑f x h

X̅ = A + ∑fu/∑f

(A∪B)∪C is equal to

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A∩ (B∪C)

(A∪B)∩C

A∪(B∪C)

A∩ (B∩C)

A cumulative frequency table is called.

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Frequency distribution

Data

Less then frequency distribution

None of these

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