Define Variance

question 58

Essay

Define variance.What is the difference between a favorable and an unfavorable variance?

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Definitions:

Determinant

A scalar value that can be computed from the elements of a square matrix and offers information about the matrix, such as whether it's invertible.

Matrix

A rectangular array of numbers, symbols, or expressions arranged in rows and columns, used in linear algebra to represent linear transformations and solve systems of linear equations, among other applications.

Determinant

A scalar value that can be computed from the elements of a square matrix and provides information about the matrix, such as whether it is invertible.

Minors

Submatrices formed by deleting one or more rows or columns from a matrix, used in the calculation of determinants and inverses.