A probability mass function (PMF), sometimes referred to as a frequency function, is a function that associates probabilities with discrete random variables. You already learned about this in the ...

A probability mass function (PMF), sometimes referred to as a frequency function, is a function that associates probabilities with discrete random variables. You already learned about this in the ...

Following is an interactive 3-D diagram of the joint pmf \ (p\). Note that it encodes the same information as in the table, where the height of a bar indicates a probability. You can rotate the ...