| 单词 | 机变 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔HOT〕If the lawnmower gets hot, turn it off. 如果割草机变热，就关掉它。朗文写作活用〔NEED/NECESSARY〕I would say that TV has become more a necessity than a luxury, wouldn't you? 我觉得电视机变成了一种必需品，而不再是奢侈品了，你说呢？朗文写作活用〔cumulative〕Of or relating to the sum of the frequencies of experimentally determined values of a random variable that are less than or equal to a specified value.累积的：在一个随机变量小于或等于某个固定值的试验中求出频率总数的美国传统〔dispensable〕Computers have made typewriters dispensable.电脑已使打字机变得可有可无了。韦氏高阶〔expected value〕The integral of the probability density function and a continuous random variable over its range of values.期望值：概率函数和超过其值域的随机变量的整数解美国传统〔market〕If you're in the market for a new radio, you'll see that the latest models are very different.如果你打算买一台新收音机，你会发现最新型号的收音机变化非常大。柯林斯高阶〔mass market〕Advances in technology have made these cameras affordable to the mass market.技术的发展使这些相机变得便宜，大众能够买得起了。剑桥高阶〔overheat〕The engine was overheating.发动机变得过热。外研社新世纪〔probability distribution〕A function of a discrete random variable yielding the probability that the variable will have a given value.概率分布：对每一个随机变量可能出现的值赋以这个值出现的概率的函数美国传统〔random variable〕A variable whose values are distributed according to a probability distribution.随机变量：其值根据可能性分布而确定的变量美国传统〔randomize〕To make random in arrangement, especially in order to control the variables in an experiment.随机化：在排列上使成为随机变量，尤指为了控制试验中的变量美国传统〔regression〕Statistics The relationship between the mean value of a random variable and the corresponding values of one or more independent variables.【统计学】 回归：随机变量的平均值和相应的一个或多个独立变量的值之间的关系美国传统〔story〕The motives of the hero become clearer as the story unfolds.随着故事的展开，男主人公的动机变得越来越清晰。牛津搭配〔variate〕A random variable with a numerical value that is defined on a given sample space.随机变量：在给定的样本空间内定义的，具有一个数值的随机变量美国传统 |
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