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Random Variables: (a) What does it mean to define a random variable? (b) Explain, in your own words, why it is important that we define

Random Variables: (a) What does it mean to "define a random variable"? (b) Explain, in your own words, why it is important that we define a random variable before we do any calculations. (c) When defining a random variable, we have to state the parameters. Define "parameter" using your own words

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