Debabrata Bandyopadhyay

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Questions related from Debabrata Bandyopadhyay

Why is variance calculated by squaring the deviations?

The variance of a set of data is obtained by calculating the mean of the squared deviations of the individual observations . Why not by taking the mean of the absolute deviations (ignoring the...

06 June 2014 8,327 29 View

What is the best introductory book on medical statistics for beginners?

A text that explains the concepts without much math and formulae? Beginners in medical research in clinical trials/epidemiology often need a basic book on medical statistics that is appropriate...

06 June 2014 7,405 23 View

What is the difference between a case-control study and a retrospective cohort study?

Both require one to look into retrospective data.

06 June 2014 9,848 2 View