Question # 1

For symmetrical distribution mega 3 is.

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zero

1

2

3

The measures of disperesin are chaged by the change of.

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Origin

Scale

Both a and b

None of these

In a skewed distribution the three averages man, median & mode are.

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identical

different

0

equal 1

In measure of relative dispersion unit of measurement is.

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Changed

Vanishes

Does not vanishes

None of these

For symmetrical distributions the values of co-efficent of skewness is

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Negative Number

Positive Number

Imaginary Number

Pure Number

Second moment abut mean is.

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0

1

variance

Standard deviation

The mean deviation of dispersion can be negative.

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Often

Sometimes

Always

Never

In a symmetrical distribution the coefficient of skewness is equal to.

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-1

+1

0

None of these

The range of the scores 19,3,140,25,95,is

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140

137

143

3

The sum of squares of deviations is a minimum if these deviations are taken from the.

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Mean

Mode

Median

All of these

Co-efficent of quartile deviation can be calculated by the following formula

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If Mean = 25 and S² =25 the C.V is

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100%

25%

20%

None of these

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 most popular measure of dispersion in industry and meteorology is.

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Range

Quartile deviation

Mean deviation

Standard deviation

The S.D. of 8,8,8,8,8, is.

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8

(8)²

zero

5

The sum of absolute deviations is a minimum if these deviations are taken from the

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Mean

Mode

Median

All of these

The lack of symmetry is called________.

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consistent

skewness

Equidistant

Kurtosis

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Statistics Ics Part 1 Chapter 4 Online Test MCQs With Answers

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