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Measures of Dispersion in Statistics

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Questions and Answers

What does statistical dispersion refer to?

The standard deviation of the data set
The state of getting dispersed or spread
The variability of numerical data around an average value (correct)
The homogeneity of the data set

Which measure of dispersion expresses variations in terms of the average of deviations of observations?

Quartile deviation
Variance (correct)
Standard deviation
Range

What does the range in a data set represent?

The spread between maximum and minimum values (correct)
The variance
The standard deviation
The mean value

How is variance calculated in a data set?

Subtract the mean from each data point, square them, sum all squares, then divide by total values (D) Signup and view all the answers

What does standard deviation measure in a set of numerical data?

The variability of individual data points around the mean (B) Signup and view all the answers

How does an absolute measure of dispersion differ from a relative measure?

Absolute measures express variations in terms of the original unit, while relative measures do not (A) Signup and view all the answers

What does dispersion help in understanding about numerical data?

The distribution and variability around an average value (D) Signup and view all the answers

Which measure of dispersion is the difference between the maximum and minimum values in a data set?

Range (C) Signup and view all the answers

What does the variance measure in a data set?

The spread or scatter of all data points around the mean (A) Signup and view all the answers

Which measure of dispersion uses the individual deviations from the mean?

Standard deviation (D) Signup and view all the answers

What does statistical dispersion refer to?

The likelihood of numerical data varying around an average value (A) Signup and view all the answers

How is variance calculated in a data set?

By taking the absolute difference between each data point and the mean, and then dividing by the total number of data points (A) Signup and view all the answers

What does an absolute measure of dispersion express?

The variation in terms of the average deviations from the observations (B) Signup and view all the answers

How does dispersion help in understanding numerical data?

It shows how homogeneous or heterogeneous the data is (D) Signup and view all the answers

Measures of Dispersion in Statistics

Choose a study mode

Podcast

Questions and Answers

What does statistical dispersion refer to?

Which measure of dispersion expresses variations in terms of the average of deviations of observations?

What does the range in a data set represent?

How is variance calculated in a data set?

What does standard deviation measure in a set of numerical data?

How does an absolute measure of dispersion differ from a relative measure?

What does dispersion help in understanding about numerical data?

Which measure of dispersion is the difference between the maximum and minimum values in a data set?

What does the variance measure in a data set?

Which measure of dispersion uses the individual deviations from the mean?

What does statistical dispersion refer to?

How is variance calculated in a data set?

What does an absolute measure of dispersion express?

How does dispersion help in understanding numerical data?

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