A discrete random variable is a type of random variable that can take on a countable set of distinct values. Common examples include the number of children in a family, the outcome of rolling a die, ...

A discrete random variable maps the outcomes of a chance process to a countable set of numbers. Variables corresponding to outcomes that are are counted are discrete. Values might be fractional and ...

A random variable that counts the number of 1's in 18 dice rolls is similar to one that counts the number of heads in 100 coin tosses or the number of females in 50 births. The probability functions ...

Read These Chapter 5. Discrete Probability Distributions in the textbook: 5.1 The Probability Distribution for a Discrete Variable (pp. 186-188) It may be a good idea to work on your own to calculate ...