One of the properties of the mean is that the sum of the deviations of each observation from the mean is zero.

Name: One of the properties of the mean is that the sum of the deviations of each observation from the mean is zero.
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This property is known as the zero-sum property of the mean. Mathematically, it can be expressed as: Σ(x- x̄) = 0, where Σ is the sum of the deviations of each observation from the mean, x̄ is the mean, and x is each single observation.

One of the Properties of the Mean Is That the Sum