Examlex
This term refers to the extent to which a test completely and accurately captures the theoretical attribute it is designed to measure.
Margin of Error
An expression of the extent to which a sample statistic may differ from the true population parameter; it quantifies uncertainty in estimation.
Z Value
A measure in statistics that represents the number of standard deviations a data point is from the mean.
Confidence Interval
A range of values used in statistics that estimates where a true parameter value for a given population lies with a certain level of confidence.
Sample Standard Deviation
A measure of the dispersion or variation in a set of sample data, representing how much individual data points differ from the sample mean.
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