Basic statistical concepts.- Measurement errors.- A though experiment.- The statistical analysis of experimental results.- The presentation of numerical results.- The propagation of errors.- The three basic probability distributions.- The statistics of radioactivity.- Elements from the theory of errors.- Comparison and rejection of measurements.- The method of least squares.- Graphs.- The written report of the results of an experiment.- Appendix 1. Least squares straight line y =α + λ x . The errors in α and λ.- Appendix 2. Dimensional analysis.- Appendix 3. The use of random numbers in finding values of a variable x which are distributed according to a given probability density function f(x).- Appendix 4. Values of fundamental physical constants.- Answers to the problems.- List of programs and code samples.- Index.