Examlex
If the sampled population is exactly normally distributed,then the sampling distribution of is also expected to be normal,regardless of the sample size.
Variance
A statistical measure of dispersion that shows how much values in a data set differ from the mean.
Standard Deviation
A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean, used to assess the spread of a data distribution.
Statistics
Calculated numbers that summarize data and relationships among variables in a sample.
Z-score
A numerical measurement that describes a value's relationship to the mean of a group of values, expressed in terms of standard deviations from the mean.
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