Examlex
Affluent students are less affected by school failure than lower-class youths.
Population Variances
refer to the measure of the dispersion of data points in a population.
Variance
A measure of the dispersion or spread of a set of data points, quantifying the distance of each point from the mean.
Sampling Distribution
describes the distribution of a statistic over many samples drawn from the same population.
Sample Mean Difference
The statistical measure that calculates the difference between the average values of two sample groups.
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