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

question 206

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 and variance to find the following:
a.
V(3X)
b.
V(3X- 2)
c.
V(3)
d.
V(3X)- 2

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