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1. what is a “random variable”. 2. An experiment consists of flipping 5 fair coins. Let...

1. what is a “random variable”. 2. An experiment consists of flipping 5 fair coins. Let X be the random variable that counts the number of coins that land heads up. (a) If the experiment ends with the outcome (HTHHT) then what is the value of X? (b) What is P(X = 1)? (c) What are all the possible values/outputs of X?

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