The expected value of the sampling distribution of the sample mean 
equals the population mean μ :
Definitions:
Production Possibilities Frontier
A graph that represents all the highest production options for two or more products, based on a specific set of resources.
Commodity Per Time
A measure of the rate at which goods or services are produced, delivered, or consumed over a specific period.
Other Commodity
General term for any marketable item produced to satisfy wants or needs, distinct from services.
Point C To D
A reference to moving or transitioning from one defined position or condition to another within a given context.
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