不怎么著名的'赌徒的错误想法'

Mr.and Mrs.Jones have five children,all girls.
Mrs.Jones:I do hope our next child isn't another girl.
Mr.Jones:My dear,after five females,it's bound to be a boy.
Is Mr.Jones right?

Many gamblers think they can win at roulette by waiting until there is
a long run of red numbers,then betting on black. Will such a system work?

Edgar Allan Poe (大名鼎鼎的爱伦·坡,我有本他的文集,要借的来要哦.)argued that
if you roll five twos in a row, your chances of getting a two on the next
roll are less than one-sixth. Was he right?

If you answered yes to any of these questons, you have fallen into a trap
called the "gambler's fallacy".(赌徒的错误想法) In every case the next event
is completely independent of all previous events.(在所有的事例中,下一个事件与
之前的事件是完全独立的.)

The probability(概率),of Mr.and Mrs.Jones having a sixth girl is the same as
that of her first child having been a girl.The probability of the next roulette
number being red is the same as that of the previous number having been
red. The probability of a two on the next throw of the die(骰子) is still one-sixth.

To make this clearer,suppose Mr.Jones tosses five heads in a row with a fari
coin.(又是抛硬币) The chances of tossing heads again is exactly the same as
before:fifty-fifty.The coin has no memoy of what it did on previous flips.

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牢记概率论的两大原则: 等可能性原则以及独立性原则.(不懂的翻数学书去.)

我看不懂

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还是同一个地方，同一个季节，同一种淡淡的风……
　　我被这淡淡风，吹乱了年轻的心。
　　淡淡的风吹吧，吹走我的泪珠，吹走我的哀愁，吹走我的伤痕，吹走我的回忆与牵挂……
　　该走的都已经走了，该留下的也没有留下～
　　我放弃我的一切，背上年轻的心——继续着我的人生孤旅……

我很怀疑的对你淼、
这不是英语吗？？
换版啦、
村长。。你数学也不至于好成这样吧、

完全不知所云。

综上所述，这个东西不是我们做的

某一名人说过，学习的乐趣在于知道他人不知道的。

做作业 …… 做作业…… 做作业…… 做作业 …… 做作业…… 做作业……