Random Variable X - A variable that represents the values obtained when we take a measurement from an experiment in the real world
Discrete Random Variable - A variable that changes by steps, and takes only specified values in a given interval
Probability Function - A function that describes how the probabilites are assigned
Probability Distribution - The set of all values of a random variable together with there assigned probabilities
Expected Value of X = E(X) = mean
Varience of X = Var(x) = Variance
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