Question # 1

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4.13

3.14

15.4

17.3

In a proportion a:b:c:d, and d are called:

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Means

Extremes

Third proportional

None of these

Sinθ,Cosecθ =..............................

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1

0

Sinθ

Cos θ

In a circle, the tangents drawn at the ends of a chord make equal _with that chord

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square

angle

cube

circle

If f is a function from A to B, then f is onto function if:

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Range f≠ A

Range f = B

Dom f = A

Second element of all ordered pairs contained in f is not repeated.

A set with no element is called.

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Subset

Empty set

Singleton set

Super set

The quotient of two numbers or algebraic expressions is called:

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Ratio

Fraction

Proportion

Percentage

tan 60^o = ...............

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1/2

√3/2

√3

1/√3

If a = 7, b = 8 and c = 1 then b²-4ac is equal to:

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33

34

35

36

The number of elements in power set {1,2,3}:

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4

6

8

9

The positive square coot of mean of the squared deviations of x₁ (i = 1,2..........n) observation from their arithmetic mean is called.

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Harmonic mean

Range

S.D

Variance

A grouped frequency table is also called:

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Data

Frequency distribution

Frequency Polygon

sinθ cosθ = ......................

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sinθ

1/cosθ

1/sinθ

sinθ/cosθ

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

Two linear factors x²-15x+56 are:

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(x-7) and (x+8)

(x+7) and (x-8)

(x-7) and (x-8)

(x+7) and (x+8)

The square of standard deriation :

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Standard deriation

Range

Dispersion

Variance

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