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Which of the following statement is correct? a. The coefficient of variation can be used to...

Which of the following statement is correct?

a. The coefficient of variation can be used to measure relative variation (ie, dispersion) among two or more sets of data measured in different units.

b. The coefficient of correlation is not influenced by units of measurement of the data.

c. For a right-skewed distribution of data, the mean is typically greater than the median.

d. All of the above are correct.

e. None of the above are correct.

Math   Statistics-And-Probability   
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Answer #1

a:The coefficient of variation is a measure of the dispersion of data points in a data set around the mean.

b: calculating the correlation coefficient standardizes the variables hence changes in scale or units of measurement will not affect its value that why  coefficient of correlation is not influenced by units of measurement of the data.

c: mean > medain then   distribution is   right-skewed

All of above are the correct statement

Option D is correct

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