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Date: 28-8-2019
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Date: 20-7-2019
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Date: 24-9-2018
2036
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The weighted mean of a discrete set of numbers with weights is given by
(1) |
where each weight is a nonnegative real number and
(2) |
For a continuous set of numbers parameterized by the variable defined over the set and a weight distribution also defined over with nonnegative for all and
(3) |
the weighted mean of is given by
(4) |
Weighted means have many applications in physics, including finding the center of mass and moments of inertia of an object with a known density distribution and computing and electric and magnetic multipole moments of charge and current distributions, respectively.
Weighted means are also commonly used in statistics, for instance, in population studies.
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