Measures of Dispersion

Measures of Dispersion
The degree to which numerical data tend to spread about an average value called:
Constant
Flatness
Variation
Skewness
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Measures of Dispersion
In quality control of manufactured items, the most common measure of dispersion is:
Range
Average deviation
Standard deviation
Quartile deviation
Author: rikazzz Comment
Measures of Dispersion
The measure of dispersion which is expressed in terms of the units of the observations I called________Absolute measure
Variance
Relative measure
None of the above
All of the Above
Author: rikazzz Comment
Measures of Dispersion
Which of the following is an absolute measure of dispersion?
Coefficient of variation
Coefficient of dispersion
Standard deviation
Coefficient of skewness
Author: rikazzz Comment
Measures of Dispersion
The average of squared deviations from mean is called:
Mean deviation
Variance
Standard deviation
Coefficient of variation
Author: rikazzz Comment
Measures of Dispersion
The positive square root of the mean of the squares of the deviations of observations from their mean iscalled:
Variance
Range
Standard deviation
Coefficient of variation
Author: rikazzz Comment
Measures of Dispersion
If there are ten values each equal to 10, then standard deviation of these values is:
100
20
10
None of these
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Measures of Dispersion
Calculate coefficient of variation c)V.) for the following data 2,4,8,6,10 and 12 is:
48.86
42.86
40.86
0.49
Author: rikazzz Comment
Measures of Dispersion
The average of squared deviations about the arithmetic mean for a set of numbers is called:
Standard deviation
Coefficient of mean deviation
Mean deviation
Variance
Author: rikazzz Comment
Measures of Dispersion
The range of the values -5, -8, -10, 0, 6, 10 is:
0
10
10
20
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