lecture2 统计推断 概率基础.pdfVIP

9/29/2010 Random Variables Statistical Methods with Applications “A random variable is a quantity whose values are random and to which a probability distribution is Rui Jiang, PhD assigned.” Associate Professor Ministry of Education Key Laboratory of Bioinformatics Bioinformatics Division, TNLIST/Department of Automation Tsinghua University, Beijing 100084, China September 29, 2010 Random experiments Sample space Random experiments Sample space A random experiment is an experiment for which The set,  , of all possible outcomes of a particular the outcome cannot be predicted with certainty.