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单词 probability density function
释义

WordReference Random House Unabridged Dictionary of American English © 2024
probability den′sity func′tion, [Statistics.]
  1. Statisticsa function of a continuous variable whose integral over a region gives the probability that a random variable falls within the region.
  2. StatisticsAlso called frequency function. a function of a discrete variable whose sum over a discrete set gives the probability of occurrence of a specified value.
  • 1935–40

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更新时间:2025/7/23 9:44:30