variance what is
Definition of variance for developer: value. It is frequently used in statistics to measure how.

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Definition variance

Explain VARIANCE: “How much a list of numbers varies from the mean (average) value. It is frequently used in statistics to measure how large the differences are in a set of numbers. It is calculated by averaging the squared difference of every number from the mean.”[segaran] Any statistical package will offer an automated way to calculate this. See also mean, bias, standard deviation.

Different definitions in web development like variance in Dictionary V.

Manual Vector Space:
Meaning A collection of vectors—for example, a matrix. See also vector, matrix, linear algebra variance definition.
Manual Vector:
Meaning mathematical definition is “a mathematical expression denoting a combination of magnitude and direction,” which you may remember from geometry class, but their third definition is closer to how data variance explain.
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