One
One summer twenty years ago.
A seaport city in Southeast Asia.
A group of handsome men and women walked into a local casino.
I distinctly remember when we walked over to the roulette table, a handsome guy stood for a few seconds and said:
"This stuff can't be played at all. You use the probability to calculate, the dealer will win. ”
The handsome man graduated from Tsinghua University.
At that time, after I heard this sentence from the handsome man, I was stunned.
Immediately think, Tsinghua graduates, can understand.
However, what is the probability, I did not understand at the time, but later entered the casino and never played roulette.
Leaving the roulette wheel, handsome men and beautiful women act separately.
When everyone gathered at the casino exit according to the agreed time, a southern beauty became the focus of everyone.
Confirmed news: The petite beauty won $35.
Later, some people said that entering the casino can not win money to leave, be careful of the casino thugs to catch up, let's hurry up.
On the way out, the Southern Beauty had been nervous.
Two
Thirty years ago, there was a casino legend in the United States.
A group graduating from MIT, with mathematical prowess, won millions of dollars in a casino-specific blackjack.
Soon, these buddies were on the casino blacklist -
Casinos forbid them to play blackjack.
However, except for blackjack, the rest is casual.
Today, I figured out the probability of roulette.
A member of MIT who was on the casino blacklist told me —
Considering that there are 38 slots on roulette, of which 18 are red, the probability of red appearing is 18 in 38, or 47.4%, and similarly, the probability of 18 black appearing is also 47.4%.
All right.
After entering the casino, you can't play roulette.
PS：
The above member told me in a book called "High Probability Thinking."
By the time I wrote this article, the book was half read.
This afternoon I bought from a newly opened second-hand bookstore in Sanlitun, and today I bought a total of three books at an expense of more than 40 yuan.
Obviously, the current return value of reading has far exceeded this 40 yuan.
In second-hand bookstores, books are not bought at a 30% discount.
The scene found that the popularity of second-hand bookstores, that is quite high.
Traditional bookstores, with few customers, are facing competition from second-hand bookstores.
