Introduction to Probability Distributions Random Variable Represents a possible numerical value from an uncertain event Discrete random variables produce outcomes that come from a counting process (e.g. number of classes you are taking). Continuous random variables produce outcomes that come from a measurement (e.g. your annual salary,or your weight). Chap 5-3 Tongji University School of Economics Management Statistics for Managers Using Microsoft ExcelStatistics for Managers Using Microsoft Excel Chap 5-3 Tongji University School of Economics & Management Introduction to Probability Distributions ▪ Random Variable ▪ Represents a possible numerical value from an uncertain event ▪ Discrete random variables produce outcomes that come from a counting process (e.g. number of classes you are taking). ▪ Continuous random variables produce outcomes that come from a measurement (e.g. your annual salary, or your weight)