BTE317 Introduction to statistics and biostatistics: definition, uses, limitation and scope; role of statistics in research, Clinical trial and experiment; variables and data; graphical presentations, measures of central tendency, measures of dispersion, correlation and regression, logistic regression, Conditional Probability, Bayes theorem, Screening tests, Sensitivity, Specificity and Predictive value, , probability distribution: binomial, poisson and normal, test of hypotheses different test about compare means, variances, z- test, t test, proportion test; sample size determination, confidence limits, confidence interval, 2x2 contingency table analysis, chi-square test, F-test, introduction to ANOVA- Single characterization data; Analysis of variance- Single classification data with subgroups, non-parametric tests, design of experiments.