Number of Motorcycles The Probability Distribution of a Discrete Random Variable X Is

question 139

Short Answer

Number of Motorcycles
The probability distribution of a discrete random variable X is shown below, where X represents the number of motorcycles owned by a family.

-{Number of Motorcycles Narrative} Apply the laws of expected value to find the following:
a.
E(X²)
b.
E(2X² + 5)
c.
E(X - 2)²

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