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WordNet-Online
Definitions from WordNet | ||||
Definitions from the WebSecond MomentDefinition: The second moment refers to the statistical measurement of the dispersion, spread, or variability of a distribution or set of data points around the mean. It is calculated by taking the sum of the squared distances of each data point from the mean. Sense 1: Noun Usage: In statistics, the second moment is also known as the variance, which quantifies the spread of data points relative to the mean. Related Products: Sense 2: Noun Usage: In physics, the second moment of mass is used to calculate the moment of inertia, which is a measure of an object's resistance to rotational motion. Sample Sentence: "To solve the problem, we needed to calculate the second moment of mass of the rotating object." Related Products: Sense 3: Noun Usage: In financial mathematics, the second moment is used to measure the volatility or risk associated with an asset's returns, often represented by the second moment of return. Sample Sentence: "Investors often consider the second moment of return when assessing the risk of a particular investment." Related Products: | ||||
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