Examlex
What is true of the Local Group?
Confidence Interval
Confidence interval is a range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a certain level of confidence.
Population Standard Deviation
Population standard deviation is a measure of the dispersion or variation in a set of values from a population, calculating how spread out the values are from the population mean.
Population Mean
The average value of all elements in a population, where the population represents the entire set of interest.
Sample Mean
The average of all the data points in a sample, used as an estimate of the population mean.
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