... RANDOM VARIABLES 74 Introduction Distribution and expectation of a finite random variable Variance and standard deviation Joint distribution Independent random variables FuncFunctions of a random ... history, probability theory was not axiomatized until the twenties and thirties of this century This axiomatic development, called modern probability theory, was now able to make the concepts of probability ... combinations and other techniques of counting Next is a chapter on probability spaces and then a chapter on conditional probability and independence The fifth and main chapter is on random variables...