Statistical: must have random sampling, allows you to generalize to the population from which you randomly selected.
Practical: do the results hold for similar individuals? allows you to generalize to similar individuals
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Explain the difference between capability and control.
an approach to sampling that has the characteristics of being randomly selected and the use of probability theory to evaluate sample results. Whereas non-statistical sampling is therefore any sampling approach that does not have both of the characteristicss of statistical sampling. I hope this will help....
look for a paper being published in "The Oncologist" later this year (2008)
statistics means numerical facts systematically collected and statistic means, scientific matter or technique of statistical analysis.
They are both concepts of a branch of mathematics that is called statistics.