Examlex
The second page of a letter includes a heading that is different from the heading of the first page.
Standard Error
A statistical measure that estimates the accuracy with which a sample distribution represents a population by using the standard deviation.
Sampling Error
The difference between a population parameter and a sample statistic that results from selecting a sample.
Expected Value
The predicted average outcome of a random variable, computed as the weighted average of all possible values.
Stratified Random Sampling
A probability sampling method in which the population is first divided into strata and a simple random sample is then taken from each stratum.
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