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Who is considered one of the founders of the mathematical style of investigation?
Pooled Variance
A weighted average of variances from multiple samples, often used in statistical procedures to estimate a common variance.
Test Statistic
A value calculated from sample data during a hypothesis test that is used to determine whether to reject the null hypothesis.
Sample Size
The number of individuals or observations included in a sample, which represents part of a larger population for the purpose of conducting statistical analysis.
ΣD
Symbolizes the sum of differences, often used in statistical formulas to denote the aggregate of specific differences.
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