Definition and scope of statistics. Origin of statistics. Functions and applications of statistics. Use of statistics in everyday life. Statistical data classifications. Statistical methods. Statistical fallacies. Levels of measurements in social science. Distributions and comparison. Sources and nature of published statistical data in Nigeria and their uses and limitations. Data classifications. Methods of data collection. Census and surveys; planning and executing surveys. Population and sample. Theoretical basis of sampling; sampling methods. Sampling and non-sampling errors. Types and 20 techniques of data presentation.