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AP Statistics Chapter 6 Discrete, Binomial & Geometric ...

AP Statistics Chapter 6 discrete , Binomial & Geometric random Variables : discrete random Variables random variable A random variable is a variable whose value is a numerical outcome of a random phenomenon. discrete random variable A discrete random variable X has a countable number of possible values. Generally, these values are limited to integers (whole numbers). The probability distribution of X lists the values and their probabilities. Value of X x1 x2 x3 .. xk Probability p1 p2 p3 .. pk The probabilities pi must satisfy two requirements: 1. Every probability pi is a number between 0 and 1.

A discrete random variable X has a countable number of possible values. Generally, these values are limited to integers (whole numbers). The probability distribution of X lists the values and their probabilities. Value of X x 1 x 2 x 3

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