Question # 1

Mode from the following data ,4.4,5.5,6.6,7.7,8.8,6.5,6.5,7 is..........

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4

5

5.6

5.7

The nth positive root of the product of the x₁,x₂,x₃,..............x₁₁ observation is called.

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Mode

Mean

Geometric mean

Median

The mean of the squared deviations of X observations from their arithmetic mean is called.

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Variance

Standard deviation

Range

Harmonic mean

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

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Place

Scale

Rate

None of these

The observations that divide a data set into four equal parts are called:

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Deciles

Quartlies

Percentiles

Mean is affected by change in:

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Value

Ratio

Origin

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

On the basic of types of variable of data, the types of frequency distribution are.

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2

3

4

5

Sum of the deviations of the variable x from its mean is alwyas....

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Zero

One

Same

Negative

The measure which determines the middlemost observation in a data set is called...................

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Median

Mode

Mean

Variance

In the given set of data 5,7,7,5,3,7,2,8,2 mode is:

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9

5

2

7

The measure of central tendency which is not affected by extreme values is called:

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Median

Arithmetic mean

Geometric mean

None of these

A Deviation is defined as a difference of any value of the variable from a:

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Constant

Histogram

Sum

The radiance measure of an angle that forms a complete circle is:

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2π

3π

4π

6π

A data in the form of frequency distribution is called..............

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Grouped data

Ungrouped data

Histogram

Dispersion

1+ cot² θ = __________.

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tan²θ

cosec²θ

cot²

sec²θ

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