Introduction and overview of statistics and the definition of some statistical concepts - Organization and presentation of statistical data - Measures of central tendency (Mean, Median and Mode) of the simple data and the frequency distribution. Measures of dispersion (The Range - The Mean Deviation - The Variance and the standard deviation - Coefficient of variation of the simple data and the frequency distribution. Definition of the probability and its applications - Independence of events - Definition of the random variable- The probability function (The probability Distribution of a discrete random variable)- The Expectation and the variance of the random variable. Sampling c of mean- Sampling distribution of sample variance. T Sampling distribution - F Sampling distribution-Central Limit Theorem- Estimating the mean of the single sample and one proportion - Estimating the difference between two means of the two sample. Tests hypotheses (One- and Two-Tailed Tests) - Tests hypotheses about the mean of the single sample and one proportion - Tests hypotheses about the difference between two means of the two sample. Correlation (Pearson and Spearman).