Almost any game you play has some kind of randomness or pseudorandomness which means that things change overtime somewhat unpredictably.
大多数你所玩过的游戏都有某种,随机数或者伪随机数,这就意味着每个事件都存在不可预测性。
So first, I choose a volatility randomly, from some distribution of possible volatilities 2 from to, in this case, 0.2.
来决定的一个值,所以首先我先随机选择一个浮动值,从可能的浮动值中的分布进行选择,在这个例子中就是0。
We can understand something that's fully random and work out the statistics and be comfortable with that to some degree.
我们能够理解一些,充满随机性,然后通过统计分析来解决的问题,而且一定程度上我们对此也很熟悉。
It was a randomly cut apart-- kind of like Yale College is actually, where you get a random assortment of people.
他们是随机分队的-,这有点像耶鲁大学,你被随机地分到和别人一组。
Well, how do you get this hearts to move up and down and seemingly in these random patterns?
但是,你怎样才能让这些爱心们看起来,像是在某种随机的模式下上上下下地移动呢?
The first sentence in the argument was, if the people in the room choose random, then they will choose around 50. That's true.
第一句话是,如果教室里的人随机选择,那平均数会落在50左右,这很对
I only give, I don't know, about 10% or 20% for getting the right number in a computation. I tell my graders, if the student demonstrates minimal acceptable proficiency that student has to get a passing score.
我只是给,我不知道,10%或者20%的随机概率得到合适的数字,我告诉我的学生们,如果有人想证明,最小可接受的熟练,就是学生们得到一个及格的分数。
Suppose somebody says, "Look, it's true that we don't need to appeal to souls in order to explain why bodies move around in a nonrandom fashion.
假如有人说,听着,我承认我们不需要诉诸,灵魂来解释,为何肉体能以非随机的形式移动
They're just random dots moving around this city.
它们只是随机的点,在城市里移动。
Because the wardens-- people off the street, randomly divided- were becoming so oppressive.
因为随意找来的,随机分配的典狱长们-,变得非常残暴。
see people with them, and what happens here is it's supposed to be those noise cancellation headphones. All they do is they take in the ambient noise that's around it, and there's actually battery in the headphones, that then produces waves that are going to destructively interfere with that ambient noise.
我从来没有用过这个,但你会看到有人带他们,它们可以作为消噪音耳机,它们所做的就是采入,周围的随机噪声,耳机里面是,有电池的,然后它能产生和,随机噪声相干相消的声波。
I did not elicit this by accident.
我不是随机抽取这一段来读的。
There is a very big-- one of the largest clinical trials that the U.S. Government ever did was called the Women's Health Initiative, and there were several purposes built into this particular study, but what it did was it took post menopausal women and randomly assigned them to different dietary conditions.
有一个很大的,美国政府曾经做过的,一个最大的临床试验,叫做"妇女健康倡导计划",这项研究有几个特殊的目的,研究主要是将更年期的妇女,随机分配至,不同的饮食环境中
Well, what I would say there is there is a distinction ... between picking out individuals and having a random choice of individuals. Like ... Between picking out... let me make sure, ... between picking out individuals, let me... what's your name?
我要说的是,选出特定的一些个体,和随机选出一些个体是有区别的,比如。,两者是有区别的,让我确认一下,挑选特定的个体,你叫什么名字?
When you are searching a list to see whether it has an element, you don't randomly probe the list, hoping to find whether or not it's there.
当我们在一个数组中,寻找目标元素的时候,我们不会随机的调查数组来看。
Well as we'll see later in the term, we're going to use a lot of randomness in a lot of our programs. Where we essentially do the equivalent of flipping coins or rolling dice.
我们会在晚些时候学到,我们会在很多程序中,用到一系列的随机检验,这跟掷骰子或者扔硬币差不多。
It couldn't have been a very complicated algorithm because it basically paired people up randomly on the campus.
这个算法不是很复杂,基本上是给校园里的人随机配对。
But they're accountable and we can list all possible values when they're discrete and form a probability weighted average of the outcomes.
但随机变量是离散的话,我们可以把所有的可能值列出来,然后算出加权平均值
Let me give you, I'm going to create, q a polar point, I'm going to call it q, and we'll give it some random values.
让我给大家讲解下,我要去创建,一个极坐标点,然后我会去命名它为,然后我给它赋一些随机的值,好,现在我想知道。
It's just some random chunk of four bytes that happens to be available at this point in time, but I can put something there.
只是一些随机的四字节的内存块,在这里是可以使用的,但是我可以在那里放置东西。
It's sort of,it's a little like the markets and other things in that there's an element of randomness and an element of skill.
它可以说是一种有点像市场或者类似的其他东西,既包含了随机性,同时又包含了技术性。
But despite the fact that the assortment is random, the division is random, cultures begin to emerge.
尽管这些分组是随机的,分队是随机的,但文化形成了。
The problem is that people in the room aren't going to choose at random.
问题是教室里的人并不会随机选择
So what we have to do, of course, is take it in to the lab and do this in a more systematic way with random assignment.
因此,我们必须做的是,把实验带回实验室,在随机安排下,更系统地做这个实验。
And I don't just mean throw out some random assortment of notes.
我不是说那种随机抛出各类音符的创作
We started with the idea you needed to appeal to souls in order to roughly explain why human bodies move, why we're animated or why we move in nonrandom ways.
一开始,我们诉诸于灵魂这样一个概念,是为了解释,为何人类的肉体能移动,为何我们有生命力,为何我们能够非随机性的运动
On the whole, Yale students are not random number generators.
总的来说,耶鲁大学的学生不是随机数生成器
It's as though I've walked across the stage like this realized, damn, it was the guy over here or rather I found the smallest element here who beat out number 2 over here so I can now put number 1 into place and recall that it didn't matte if I punted whoever was standing here 'cause they were given to me randomly anyway.
这就像是我这样走过讲台,然后才发现要找的人在那儿,或者说发现了最小的元素,那么就可以将1号放在正确的位置,而在这儿的是谁并不重要,因为他们本身就是,随机的。
This refers to random variables that have fat-tailed distributions-- random variables that occasionally give you really big outcomes.
这就表示,服从长尾分布的随机变量,这些数据出现极端值的概率比较大
Here's the polar representation of it, some random set of numbers which makes sense.
也就是,这里是它的极坐标表示法,一些有意义的随机数字集。
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