Populations and samples. Measures of central tendency. Measures of dispersion and variability. Testing of goodness of fit. Contingency tables. The normal distribuition. One-sample hypotheses. Two-sample hypotheses; Paired-sample hypotheses. Multisample hypotheses. Multisample hypotheses. The analysis of variance. Multiple comparasion. Two factor analysis of variance. Data transformations. Multiway factorial analysis of variance. Nested (hierarchial) analysis of variance. Simple linear regression. Comparing simple linear regression equations. Simple linear correlation. Polynomial regression. The binomial distribution. The posion distribution and randomness. Circular distributions. Descriptive statistics. Circula4 distribution. Hypotheses testing.