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单词 Probability distribution
释义

Probability distribution

原声例句
可汗学院:统计学(视频版)

This is the variance of your original probability distribution.

这是原始概率分布的方差。

双语版 TED-Ed 演讲精选

The electron will behave more like a wave than a particle, with its position described by probability distributions that you'll have to imagine.

电子的行为不像粒子,而更像是波,想像它出现的位置以机率分布。

可汗学院:统计学(视频版)

And let me draw its probability distribution.

让我画出它的概率分布。

可汗学院:生物化学

All you can know is a probability distribution of where it is likely to be.

您所知道的只是它可能所在位置的概率分布。

经济学人 Culture

He views people not as good or bad, but as " probability distributions" around a mean.

他认为人不是好是坏,而是围绕平均值的“概率分布”。

a student's guide

And I focus on the methods which are required to independently sample from a probability distribution.

我主要讲从概率分布中独立抽样所需要的方法。

a student's guide

I discuss why a likelihood is different to a probability distribution in basic inference.

我将讨论在基本推理中为什么可能性与概率分布不同。

a student's guide

So what can we do? Well, it turns out that one way of understanding a probability distribution.

那么我们能做什么呢 这是理解概率分布的一种方法。

a student's guide

Really the typical way in which it stated is in terms of probability distribution.

它最典型的表述方式是概率分布。

可汗学院:统计学(视频版)

The probability of getting any x, and it's a class of probability distribution functions.

得到任意x的概率,是一类概率分布函数。

a student's guide

And this, together with some of the other difficulties of dealing with high dimensional probabilities distributions, mean that.

这个 加上其他一些处理高维概率分布的困难 意味着。

可汗学院:统计学(视频版)

So this is the sum over the entire probability distribution, and so that is going to be equal to 1.

所以这是整个概率分布的总和,所以它等于 1。

可汗学院:统计学(视频版)

This is a discreet probability distribution of me making, in this case, k shots out of 6.

这是我做出的谨慎概率分布,在这种情况下,6 次中有 k 次。

可汗学院:统计学(视频版)

And this also applies to the discrete probability distributions.

这也适用于离散概率分布。

可汗学院:统计学(视频版)

What I have just drawn is a binomial probability distribution.

我刚才画的是二项式概率分布。

可汗学院:统计学(视频版)

It isn't true for any random variable, X. Only true for random variable, X, whose probability distribution is the binomial distribution.

它不适用于任何随机变量 X。仅适用于概率分布为二项分布的随机变量 X。

可汗学院:统计学(视频版)

It's a particular instance of the binomial probability distribution.

这是二项式概率分布的一个特例。

可汗学院:统计学(视频版)

So that's my probability distribution function.

这就是我的概率分布函数。

可汗学院:统计学(视频版)

Anyway, we've done the work, now we're ready to draw a probability distribution.

无论如何,我们已经完成了工作,现在我们准备绘制概率分布。

可汗学院:统计学(视频版)

It could be a discrete probability distribution or a continuous one, and we learned that that's a probability density function.

它可以是离散概率分布或连续概率分布,我们了解到这是一个概率密度函数。

中文百科

概率分布

概率分布德语:Wahrscheinlichkeitsverteilung英语:probability distribution)或简称分布,是概率论的一个概念。使用时可以有以下两种含义:

XY为同分布的随机变量,当且仅当对任意事件A \in \mathcal{F} ,有\mathbb{P}(X\in A) = \mathbb{P}(Y\in A)成立。

但是,不能认为同分布的随机变量是相同的随机变量。事实上即使XY同分布,也可以没有任何点ω使得X(ω)=Y(ω)。在这个意义下,可以把随机变量分类,每一类称作一个分布,其中的所有随机变量都同分布。用更简要的语言来说,同分布是一种等价关系,每一个等价类就是一个分布。需注意的是,通常谈到的离散分布、均匀分布、伯努利分布、正态分布、泊松分布等,都是指各种类型的分布,而不能视作一个分布。

英语百科

Probability distribution 概率分布

The probability mass function (pmf) p(S) specifies the probability distribution for the sum S of counts from two dice.  For example, the figure shows that p(11) = 1/18.  The pmf allows the computation of probabilities of events such as P(S > 9) = 1/12 + 1/18 + 1/36 = 1/6, and all other probabilities in the distribution.
The probability density function (pdf) of the normal distribution, also called Gaussian or
The probability mass function of a discrete probability distribution. The probabilities of the singletons 1, 3, and 7 are respectively 0.2, 0.5, 0.3. A set not containing any of these points has probability zero.

In probability and statistics, a probability distribution assigns a probability to each measurable subset of the possible outcomes of a random experiment, survey, or procedure of statistical inference. Examples are found in experiments whose sample space is non-numerical, where the distribution would be a categorical distribution; experiments whose sample space is encoded by discrete random variables, where the distribution can be specified by a probability mass function; and experiments with sample spaces encoded by continuous random variables, where the distribution can be specified by a probability density function. More complex experiments, such as those involving stochastic processes defined in continuous time, may demand the use of more general probability measures.

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更新时间:2025/6/17 19:22:25