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3.1 Concept of a Random Variable

XAMPLE 3.1 (Coin). Consider the random experi-ment of tossing a coin three times and observing the re-sult (a Head or a Tail) for each toss. Let X denote the total number of heads obtained in the three tosses of the coin. (a) Construct a table that shows the values of the ran-dom variable X for each possible outcome of the random experiment.

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