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Variance
A statistical measure of the dispersion or spread in a set of data points, indicating how much the values differ from the mean of the set.
Variance
A measure of variability that denotes the average of the squared differences from the mean, showing how widely the values in a data set are spread.
Squared Deviations
Values obtained by subtracting the mean from each data point in a set, squaring the result to eliminate negative numbers, used in variance calculation.
Aptitude Test
An examination designed to measure a person's ability to develop skills or acquire knowledge, predicting future performance.
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