Let X, the lifetime (in years) of a radio tube, be exponentially distributed with mean 1/. Prove that [X], the integer part of X, which is the complete number of years that the tube works, is a geometric random variable.

1 STAT 145 Introduction to Statistics 1 Chapter 2 Organizing and Summarizing Data Terms ormulas 2.1 Organizing Qualitative Data Objectives: Group data in tables / Construct bar graphs and pie charts...