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  1. Variance - Wikipedia

    In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation is obtained as the square root of the variance. …

  2. Variance | Brilliant Math & Science Wiki

    Variance is a statistic that is used to measure deviation in a probability distribution. Deviation is the tendency of outcomes to differ from the expected value.

  3. Variance: Definition, Formulas & Calculations - Statistics by Jim

    Variance is a measure of variability in statistics that assesses the average squared difference between data values and the mean.

  4. Variance - Definition, Formula, Examples, Properties - Cuemath

    Variance is a statistical measurement that is used to determine the spread of numbers in a data set with respect to the average value or the mean. The standard deviation squared will give us the variance.

  5. VARIANCE Definition & Meaning - Merriam-Webster

    The meaning of VARIANCE is the fact, quality, or state of being variable or variant : difference, variation. How to use variance in a sentence. Synonym Discussion of Variance.

  6. Variance - GeeksforGeeks

    Nov 4, 2025 · Variance is a number that tells us how spread out the values in a data set are from the mean (average). It shows whether the numbers are close to the average or far away from it. If the …

  7. What Is Variance in Statistics? Definition, Formula, and Example

    Jun 17, 2025 · What Is Variance? Variance is a statistical measurement of how large of a spread there is within a data set.

  8. What is Variance in Statistics? Easy Step-by-Step Guide

    In statistics, variance is used to comprehend the correlation among numbers within a data collection, rather than employing more elaborate mathematical techniques, such as organizing the data into …

  9. VARIANCE Definition & Meaning | Dictionary.com

    VARIANCE definition: the state, quality, or fact of being variable, divergent, different, or anomalous. See examples of variance used in a sentence.

  10. How to Calculate Variance | Calculator, Analysis & Examples

    Jan 18, 2023 · The variance is a measure of variability. It is calculated by taking the average of squared deviations from the mean. Variance tells you the degree of spread in your data set. The more spread …