In the case of the coin toss, there are only two, but I'm saying in general there could be an infinite number.

在抛硬币的例子里,只有两个取值,但是一般都会有无限个可能值

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And is able to then say, inside of that class definition, find the value of x.

这个类的定义这里然后取值，也可以这么说，在类的定义的里面。

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When you mix two chemicals together, it could be any number, there's an infinite number of possible numbers and that would be continuous.

把两种试剂混合的时候,温度可以取任何值,对温度的取值有无数种可能,也就是说,是连续的

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So where is--suppose he's pricing-- We'll say the prices are between 0 and 1, suppose he's pricing at .8, what would be a good price for me to set?

如果他定价,假设他的价格,取值在0和1之间,假设他的价格设定在0.8,我应该设定哪个价格比较好呢

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This number always lies between -1 and +1.

这个数的取值在-1到+1之间

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You have discrete random variables, like the one I just defined, or there are also--which take on only a finite number of values-- and we have continuous random variables that can take on any number of values along a continuum.

就像刚定义的,是一个离散型随机变量,随机变量还可以有无限种取值,也就是连续型随机变量,随机变量可以取某一区间的一切值

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I have it down that there might be an infinite number of possible values for the random variable x.

对于这个随机变量X,可能的取值个数是无限的

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k * n m plus k all times log n is in general going to be much better than k times n.

在普遍情况下要远远好于,实际情况要取决于n和k的取值。

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If when x is low, y also tends to be low, then this will be negative number and so will this, so their product is positive.

如果x取值小,同时y值也小,这将是一个负值,这个也是负值,负负得正,结果是正值

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The basic definition-- the expected value of some random variable x--E--I guess I should have said that a random variable is a quantity that takes on value.

最基本的定义,某一个随机变量X的期望值E,我应该提到过,随机变量是一个可以取值的数

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