State the purpose for which data are used.

What are the advantages of using mode?

What is dispersion?

Define Correlation.

What is perfect correlation?

What is the maximum extent of correlation?

What is perfect correlation ?

Explain relative position of mean, median and mode in a normal distribution and skewed distribution with the help of diagram.

Comment on the applicability of mean, median and mode.

Explain the process of computing Standard Deviation with the help of an imaginary example.

Which measures of dispersion is the most unstable statistic and why?