His big moment came in the final game. Statistics.the mean or expected value of the product formed by multiplying together a set of one or more variates or variables each to a specified power. Philosophy. an aspect of a thing. Obsolete.an essential or constituent factor. ...
Incalculus based statistics, the first two moments of distribution are most important. The mean tells us what theaverage valueslook like, and the variance tells us about the spread. In physics, all moments are used, including higher-order n. Sometimes they are calculated from the definition; ...
Define Moment (mathematics). Moment (mathematics) synonyms, Moment (mathematics) pronunciation, Moment (mathematics) translation, English dictionary definition of Moment (mathematics). Noun 1. second moment - the expected value of the square of the devia
English Definition (名) As a noun Having important effects or influence. The n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value. A turning force produced by an object acting at a distance (or a measure of that force). At ...
前面的回答都给出了很好的定义,读者也可以参考Moments - Definition of Statistics Terms这里的解释。初学统计的人(包括我自己)往往对"moment"特别是中文翻译"矩"感到困惑,这丝毫不奇怪,因为它离原始含义"to move"或者"移动"已经太远了。统计学上的矩和物理上的矩,都是数学上的矩的特例,英語都是moment。
Definition 2Thevarianceof a random variableXX=VarX=E(X−EX)2=VarX=E(X−EX)2. The standard deviation ofXX=√VarX=VarX. Part 2: Moment Generating Function (mgf) The mgf can be used to generate moments. In practice, it is easier to compute moments directly than to use the mgf. ...
juncture:at this moment in history. importance or consequence:a decision of great moment. a particular time or period of success, excellence, fame, etc.:His big moment came in the final game. Statisticsthe mean or expected value of the product formed by multiplying together a set of one or...
Define Just a Moment. Just a Moment synonyms, Just a Moment pronunciation, Just a Moment translation, English dictionary definition of Just a Moment. n. 1. A brief, indefinite interval of time. 2. a. A specific point in time, especially the present time:
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in the definition for the current loop, the magnetic moment is the product of the current flowing and the area, m = i a so, the unit conferring to this definition is articulated by amp-m 2 . it can also be suggested in terms of torque and moment. conferring to that, the ...