Question

calculate the standard deviation if coefficient of variations is 23.21no. of items is 110 and mean is 21​

Answer 1

Answer:

The range and the mean deviation of data distributions serve their purpose in characterizing the spread of a distribution curve, but are very limited in their application and suffer from serious drawbacks. The Standard Deviation and coefficient of variation is, therefore, an improved measure of dispersion of a given dataset. Also, it can be used as a good parameter to characterize different curves.

Explanation:

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Answer 2

Answer:

c.v=standard deviation/arithmetic mean *100

4.8741

Explanation:

23.21=standard deviation / 21 ×100. 2321*21÷100*100=4.8741