名词
中文翻译：正常梯度
同义词：
['normal distribution', 'normal curve', 'normal distribution function例句：1. The normal distribution of the population is used to estimate the expected value.（人口的正常分布用于估计期望值。）']
例句：
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1. The normal distribution of the population is used to estimate the expected value.
人口的正常分布用于估计期望值。
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2.The normal curve shows the relationship between the height and weight of a person.
正态曲线展示了一个人的身高与体重之间的关系。
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3.The normal distribution function is used to calculate the probability that a random variable falls within a given range.
正态分布函数用于计算随机变量落在给定范围内的概率。