Comp Sci


Random Variable
A random variable X is a rule that assigns a numerical value to each outcome in
the sample space of an experiment.
A discrete random variable can take on specific, isolated numerical values, like
the outcome of a roll of a die, or the number of dollars in a randomly chosen
bank account.
A continuous random variable can take on any values within a continuum or an
interval, like the temperature in Central Park, or the height of an athlete in
centimeters.
Discrete random variables that can take on only finitely many values (like the
outcome of a roll of a die) are called finite random variables.
Probability Distribution
The probability P(X = x) is the probability of the event that X = x. Similarly,
the probability that P(a