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词汇 Symmetric distribution
分类 英语词汇 英语翻译词典
释义

Symmetric distribution

英语百科

Symmetric probability distribution

In statistics, a symmetric probability distribution is a probability distributionan assignment of probabilities to possible occurrenceswhich is unchanged when its probability density function or probability mass function is reflected around a vertical line at some value of the random variable represented by the distribution. This vertical line is the line of symmetry of the distribution. Thus the probability of being any given distance on one side of the value about which symmetry occurs is the same as the probability of being the same distance on the other side of that value.

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