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charmingzhou新蟲 (小有名氣)
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[求助]
數(shù)學(xué)概率密度函數(shù)定義句子翻譯求助
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(1)A probability density function is a mathematical function that describes the proability of each member of a discrete set or a continuous range of outcomes or possile values of a variable. Common examples of probability density functions are lognormal, normal(Gaussian) exponentail, and pareto. 概率密度函數(shù)(PDF)是一個(gè)數(shù)學(xué)函數(shù),用于描述離散集合中每個(gè)元素的出現(xiàn)概率,以及連續(xù)輸出或隨機(jī)變量的概率分布。常見的概率密度函數(shù)有對數(shù)正態(tài)分布、正態(tài)(高斯)分布、指數(shù)分布和Pareto分布。 (2)Expected value is mathematically defined as the integral of a random variable with its probability measure. These are theoretical terms. Their experimental counterparts are the mean or average value that is calculated as the probability-weighted sum of sample values. 它的數(shù)學(xué)定義是隨機(jī)變量可能結(jié)果的概率乘以實(shí)際結(jié)果的總和,這是理論的說法。實(shí)驗(yàn)的說法是,它是樣本值的概率加權(quán)之和的平均值。 匯總一起,求幫忙修改。謝謝! |
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