Question # 1

The measures of disperesin are chaged by the change of.

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Origin

Scale

Both a and b

None of these

Teh range of the value -2, -4, -6 and -8 is.

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-6

6

-10

-4

The mean of the absolute deviations of observations from mean, median or mode is called

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Quartile deviation

Absolute deviation

Mean

Mean deviation

The value of standard deviation changes by change of.

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Origin

Algebraic sign

Scale

None

Quartile Co-efficient of skewness is also called as

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Median co-efficent of skewness

Pearson's 1st co-efficient of skewness

Pearson's 2nd co-efficient of skewness

None of these

Mean deviation is always.

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Less then S.D

Equal to S.D

More than S.D

Negative

Which is a poor measure of dispersion in open-end distribution.

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Range

Standard deviation

Variance

A.M

First central moment is always.

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0

1

-1

2

A data having least C.V is considered more__________.

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Consistent

Skewness

Equidistant

None of these

Relative depression is of types.

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1

4

3

2

The mean deviation can never be

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Positive

Negative

Zero

None of these

If Q3 = 20 and Q1 = 10 the coefficient of quartile deviation is.

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3

1/3

2/3

1

The distribution is symmetrical if the moment coefficient of skewense b1 is.

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Negative

Postive

3

0

If the value of a variable are -2, -3, -5, -10 then range is.

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-12

8

-8

0

M.D. of the values 4,4,4,4 is

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0

4

8

12

β is a letter

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German

Greek

Latin

Dutch

The types of dispersion are.

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2

3

4

5

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