Examlex
Identify and explain the two most common forms of government financial and medical aid offered to Americans who are retired and over age 65.
Population Mean
The average value of a characteristic or measurement across the entire population targeted in a study.
Population Standard Deviation
A measure of the dispersion or spread of a set of data points in a population, quantifying how much the data diverges from the mean of the population.
Sample Size
The number of observations or replicates used in a statistical sample.
Confidence Estimate
A range or interval within which an unknown population parameter is expected to lie, calculated to a specific confidence level.
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