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Under rate-of-return regulation, average cost pricing
Population Standard Deviation
A measure that quantifies the amount of variation or dispersion of a set of data values across a whole population.
Sample Size
The number of participants or observations included in a sample, used in statistical analysis to make inferences about a larger population.
T-Distribution
A probability distribution that is used to estimate population parameters when the sample size is small and the population standard deviation is unknown.
Standard Normal Distribution
A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparing other normal distributions.
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