A random variable is a variable whose value is subject to variations due to chance.(随机变量是其值受到偶然性变化影响的变量。)
When rolling a fair six-sided die, the number that appears is an example of a random variable.(掷一个公平的六面骰子时,出现的数字是一个随机变量的例子。)
The height of a randomly selected person is a continuous random variable.(随机选择的人的身高是一个连续随机变量。)
The outcome of a coin toss can be modeled as a discrete random variable with two possible values: heads or tails.(硬币抛掷的结果可以建模为一个离散随机变量,有两个可能的值:正面或反面。)
In probability theory, a random variable is often denoted by an uppercase letter, such as X.(在概率论中,随机变量通常用大写字母表示,如X。)
Random variables can be classified as either discrete or continuous.(随机变量可以分为离散和连续两类。)
The distribution of a random variable describes the probabilities of different outcomes.(随机变量的分布描述了不同结果的概率。)
The expected value of a random variable is a measure of its average value.(随机变量的期望值是其平均值的度量。)
A random variable can have a probability distribution that follows a specific mathematical function, such as a normal distribution.(随机变量可以有遵循特定数学函数的概率分布,如正态分布。)
Random variables are used in statistical analysis to model uncertain or random phenomena.(随机变量在统计分析中用于建模不确定或随机现象。)
The values of a random variable can be discrete, such as the numbers on a dice, or continuous, such as the height of individuals.(随机变量的值可以是离散的,如骰子上的数字,也可以是连续的,如个体的身高。)
Random variables are a fundamental concept in probability theory and statistics.(随机变量是概率论和统计学中的基本概念。)
Probability density functions are used to describe the likelihood of different values occurring for a continuous random variable.(概率密度函数用于描述连续随机变量出现不同值的可能性。)
A random variable can be discrete or continuous, depending on whether its possible values form a countable or uncountable set.(随机变量可以是离散的或连续的,取决于其可能的值是否形成可数或不可数集合。)
The standard deviation of a random variable measures the dispersion of its values around the mean.(随机变量的标准差度量其值围绕均值的离散程度。)
Random variables are often used to model real-world phenomena, such as the distribution of heights in a population or the number of defects in a manufacturing process.(随机变量经常用于模拟现实世界的现象,如人口中身高的分布或制造过程中的缺陷数量。)
The cumulative distribution function of a random variable gives the probability that the variable takes on a value less than or equal to a given number.(随机变量的累积分布函数给出了变量取小于或等于给定数值的概率。)
Random variables are used in statistical inference to make predictions or draw conclusions about populations based on sample data.(随机变量在统计推断中用于根据样本数据对总体进行预测或得出结论。)
The variance of a random variable quantifies the spread or variability of its values.(随机变量的方差量化了其值的扩散或变异性。)
A random variable can be discrete with a finite or countably infinite number of possible values.(随机变量可以是离散的,具有有限或可数无穷个可能的值。)
In mathematical statistics, random variables are used to model the uncertainty inherent in statistical experiments.(在数理统计学中,随机变量被用来模拟统计实验中固有的不确定性。)
中英词典:suffered from
形容词含义
受苦的;患病的
遭受…之苦的;经历…的
名词含义
患者
受难者
词语辨析
suffered from 与 suffered with 的区别:
suffered from 强调疾病或困难的起源;suffered with 表示经历疾病或困难的过程。
词汇扩充
suff
specific performance
形容词:
1. 具体履行的(relating to the act of performing a specific duty or obligation)
2. 具体表现的(referring to a particular performance or action)
名词:
1.
beoppositeto
形容词
beoppositeto is an adjective that means being completely different or contrary to something.
词语辨析
与beoppositeto相似的词语有:contrary to、opposite to、
中英词典:even
形容词
1. 相等的,均匀的
- 英文释义:flat and smooth; level; equal in degree or extent; equal in amount or value
- 词语辨析:平坦的(flat)强调水平或表面的平整;均匀的(even)强调整体上的平衡或一致性。
- 词汇扩充:
industry
名词
1. 行业;产业
The automotive industry is experiencing rapid growth. (汽车行业正在迅速增长。)
China is a major player in the electronics industry. (中国是电子产业的主要参与者。)
2. 勤勉;勤
中英词典:carafe
名词
1. 中文:玻璃瓶,玻璃壶
英文:a glass bottle or container for serving wine or water
例句:
- 请把红酒倒入玻璃瓶中。
Please pour the red wine into the carafe.
2. 中文:酒瓶,酒具
中英词典:doc
形容词:
1. doc (informal)
中文:熟练的,精通的
英文:skilled, proficient
例句:
1. She is a doc programmer who can easily solve complex coding problems.
她是一位熟练的程序员,可以轻松解决复杂的编码
egomaniac
形容词
1. 自大的
Definition: excessively self-centered or self-obsessed; having an exaggerated sense of self-importance.
Example:
- He is such an egomaniac that he
retrieve
词性:动词
中文翻译:取回,恢复,找回
英文释义:to get or bring back; to recover or regain
例句:
We need to retrieve the lost files from the backup.
我们需要从备份中恢复丢失的文件。
He managed
disintegrated
形容词
1. 破碎的,分解的
- 中文翻译:破碎的,分解的
- 例句:
- The disintegrated glass lay scattered on the floor.
- 破碎的玻璃散落在地板上。
- The disintegrated wood had turned
中英词典:hard
形容词
坚硬的;硬的 - firm to the touch or resistant to pressure
困难的;艰苦的 - difficult to do or achieve
艰难的;不愿意的 - difficult to deal with or resistant to influence
Failure
词性:名词
1. 不成功;失败
词义:指未能达到预期目标或取得成功的状态。
例句:
He was devastated by the failure of his business.
他因生意失败而心力交瘁。
After several failures, she finally succeede
中英词典:portable
形容词
1. 可携带的;轻便的
- 英:portable
- 例句:This portable computer can be easily carried in a backpack.(这台便携式电脑可以轻松放在背包里。)
- 柯林斯词典:Capable of being transported
单词:ll
形容词:
1. 轻柔的;轻微的(adjective)
Definition: soft; gentle
Example: She spoke in a ll voice so as not to wake the baby.
她轻声细语,以免吵醒宝宝。
2. 小的;矮的(adjective)
Definition: s
中英词典:tight
形容词
紧的 - firmly or closely fixed in place; not easily moved or loosened
牢固的 - firmly held or fastened together
紧密的 - fitting closely; snug
拮据的 - having
large
形容词
1. 大的;宽敞的:
That is a large house. 这是一所大房子。
She has large hands. 她的手很大。
2. 大规模的;大量的:
The company has a large workforce. 公司拥有庞大的劳动力。
He made a large profit las
eternal
形容词
1. 永恒的
Eternal love never dies. (永恒的爱永不消逝。)
The beauty of nature is eternal. (自然之美是永恒的。)
His memory will remain eternal. (他的记忆将永存。)
2. 永久的
She made an eterna
中英词典
形容词
conspecific
中文:同种的
英文:of the same species
名词
conspecific
中文:同种动物
英文:member of the same species
词语辨析
暂无相关信息。
词汇扩充
暂无相关信息。
近义词
暂无相关信息。
反义词
暂无相关信息。
柯林斯
中英词典:thank
1. 名词
感谢,谢意
感谢的言辞或行为
词语辨析
thank与thanks的区别:thank是动词,表示“感谢”,而thanks是名词,表示“感谢”或“谢意”。例如:
Thank you for your help.(谢谢你的帮助。)
I want to express my thanks t