Examlex
Proportional stratified sampling occurs ______.
Mean
The arithmetic average of a dataset, found by adding all the numbers in the set and dividing by the count of numbers.
Standard Error
A statistical measure that describes the accuracy with which a sample distribution represents a population using the standard deviation.
Mean
The mean of a series of numbers, determined by dividing their total sum by the quantity of numbers in the series.
Confidence Interval
A range of values derived from sample statistics that is likely to contain the true population parameter with a given level of confidence.
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