Question # 1

The formula of grouped data of the arithmetic mean is:

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X̅ = ∑X/n

X̅ = A + ∑fX/∑X

X̅ = ∑fX/n

X̅ = l +n/f (n/2 - c)

D° M' S"form of 45.36° is:

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45° 21" 36'

45' 21'° 36"

45° 21' 36''

45'' 21' 36°

Sin²θ + Cos²θ = ______________________________:

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Sinθ

Cosθ

1

2

The centre of incicle is called:

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Origin

Incentre

Centre

Fixed point

Point (-1, 4) lies in the quadrant:

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I

II

III

IV

Median from the data 2.3,2.7,2.5,3.1 and 1.9 Is.........................

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2.3

2.5

2.7

2.9

If a : b = c : d, then a : c = b : d is called theorem of:

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Invertendo

Componendo

Dividendo

Alternando

Sin (-310^o) = ...................

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Sin310^o

-Sin310^o

Cos310^o

tan310^o

Mean is affected by change in ..........

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Place

Scale

Rate

None of these

The measures that are used to determine the degree or extent of variation in a data set are called measures of...........................

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Dispersion

Central tendency

Average

Quartile

A⋃(B⋂C) = ___________________

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(A⋃B) ⋂ (A⋃C)

A⋂ (B⋂C)

(A⋂ B)⋃ (A⋂C)

A⋃ (B⋃ C)

2π radian = .......................

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0^o

90^o

180^o

360^o

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 measure which determines the middle most observation in a data set is called.

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Median

Mode

Mean

Rang

Product of the roots of the equation 3x²-5x+7=0:

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3⁷

7³

The Range of R

={(1,3),(2,2),(3,1)(4,4)} is.

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{1,2,4}

{3,2,4}

{1,2,3,4}

{1,3,4}

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