“log-normal distribution”的概念、定义、翻译、参考文献-科学参考

log-normal distribution

Geology and Earth Sciences

A distribution in which the logarithms of the values have a Gaussian (normal) distribution. This distribution is common in geologic contexts, e.g. grain sizes.

Economics

The probability distribution of a random variable such that its logarithm is normally distributed. This distribution naturally results from the effects of a large number of independent multiplicative sources of variation. It is contrasted with the normal distribution, which results when there are numerous independent additive sources of variation. The log-normal distribution is upward skewed, with a mean larger than its median, whereas a normal distribution is symmetrical about its mean.

单词	log-normal distribution
释义	log-normal distribution Geology and Earth Sciences A distribution in which the logarithms of the values have a Gaussian (normal) distribution. This distribution is common in geologic contexts, e.g. grain sizes. Economics The probability distribution of a random variable such that its logarithm is normally distributed. This distribution naturally results from the effects of a large number of independent multiplicative sources of variation. It is contrasted with the normal distribution, which results when there are numerous independent additive sources of variation. The log-normal distribution is upward skewed, with a mean larger than its median, whereas a normal distribution is symmetrical about its mean.
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