Question: In a random quantitative variable, numerical values are assigned to observations or measurements according to some probability function. To describe a random quantitative variable Y,

In a random quantitative variable, numerical values are assigned to observations or measurements according to some probability function. To describe a random quantitative variable Y, we use the expectation, denoted ().

1.What is the main reason why it is important for us to understand that () = ?

2.Consider Y is the outcome of the rolling of a die with six faces, and you may assume that the die is fair. Calculate .

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