Question # 1

For symmetrical distribution mega 3 is.

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zero

1

2

3

Which measure of disperesion is considered as the best genereal purpose measure of dispersion.

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Range

Semi interquartile range

Standard deviation

Mean deviation

The positive square root of the mean of the squares of deviations of values from their mean is

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Variance

Covariance

Standard deviation

Standard error

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

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Range

Standard deviation

Variance

A.M

Mean deviation is always.

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Less then S.D

Equal to S.D

More than S.D

Negative

The value of standard deviation changes by change of.

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Origin

Algebraic sign

Scale

None

β₁ is a quantity

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Dimensional

Dimension less

Positive

Negative

Co-efficent of standard deviation can be measured by the following formula

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Range can be calculated in open-end classes.

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Never

Always

Often

Seldom

The value of quartile deviation is always

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Positive

Zero

Negative

None of these

In symmetrical distribution if Q1 = 4, Q3 = 12 then median is.

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4

6

8

zero

the standard deviation is independent of.

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Change of origin

Change of scale of measurement

Change origin and scale of meaturement

None of these

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

test2

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3

4

2

For Laptokurtic distribution.

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b2 > 3

b2 < 3

b2 = 3

b1 > 3

The compare the variation of two or more than two sereies, we use.

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Mean absolute deviation

Variance

Coefficient of viariation

Corrected atandard deviation

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

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0

4

8

12

If Mean = 25 and S² =25 the C.V is

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100%

25%

20%

None of these

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Statistics Ics Part 1 Chapter 4 Online Test MCQs With Answers

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