In the language of statistics, research is a planned & systemic method of data
collection, analysis, & drawing conclusions. In this chapter, a demonstration of the
relationship between numerical, nominal & ordinal data & calculation of other
statistical techniques applicable in critical research, is described in a nutshell.
Keywords: Anova, Ara, Bayes theorem, Correlation coefficient, Cer, Eer, Likely hood ratio, Multiple regression, Nnt, Odds ratio (or), Probability, Regression, Roc curve, Rrr, Sensitivity, Specificity.
