PDF chapter test TRY NOW
1. The standard deviation and mean of a data are \(6.5\) and \(12.5\) respectively. Find the coefficient of variation.
Answer:
The coefficient of variation \(=\) \(\%\)
2. The standard deviation and coefficient of variation of a data are \(1.2\) and \(25.6\) respectively. Find the value of mean.
Answer:
Mean \(=\)
3. If the mean and coefficient of variation of a data are \(15\) and \(48\) respectively, then find the value of standard deviation.
Answer:
The standard deviation \(=\)
4. If \(n = 5\), \(\overline x = 6\), \(\sum x^2 = 765\), then calculate the coefficient of variation.
Answer:
The coefficient of variation \(=\) \(\%\)
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