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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
Elaboration
The process of adding more detail or information to something, often to clarify or enhance understanding.
Short-Term Memory
The capacity for holding, but not manipulating, a small amount of information in an active, readily available state for a short period of time.
George Miller
A cognitive psychologist best known for his work on the capacity of human memory and the theory that short-term memory is limited to about seven items.
Cowan
A surname of likely British origin, but without a clear definition of its significance in a specific field without further context.
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