Examlex
Volcanic eruptions and lead poisoning are now considered two of the leading causes for the fall of the western Roman empire.
Mean
The arithmetic average of a set of numbers, calculated by adding all the numbers together and dividing by the count of those numbers.
Standard Error
A statistic that measures the dispersion of sample means around the population mean, estimating the variability within a data set.
Confidence Interval
Newly defined: A measure indicating the reliability of an estimate, often used to infer about the population parameter from sample data.
Sample
A subset of a population used in statistical analysis to estimate the characteristics of the whole population.
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