variance

Chinese equivalent: 方差

variance The average of the squared differences from the mean, measuring the dispersion of data.

Syllabus path: Probability and Statistics › Numerical Characteristics of Data (Mean, Variance, etc.)

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CSCA Mathematics Exam Glossary

Definition

variance The average of the squared differences from the mean, measuring the dispersion of data.

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Numerical Characteristics of Data (Mean, Variance, etc.)

Numerical Characteristics of Data (Mean, Variance, etc.) Core Conceptual Framework Statistics describes a set of data (sample x₁, x₂,..., x n ) primarily through two dimensions of numerical characteristics: 1. Central Tendency: Finding the "center" or "representative value" of th…

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