I thought of probability theory in college, although there is an example in the college course: "drawing lots"
Sometimes playing a game or a lottery requires a group of people to draw lots. Many people are always eager to draw first, thinking that the chances of winning the prize are higher.
In fact, no matter how many lucky draws, the winning probability is the same and equal. (Premise: fairness, impartiality and not affected by other environmental factors)
Suppose: 4 lottery tickets only won 1.
Then the first one has a 1/4 chance of winning.
The second person who draws, because only the first person doesn't win the prize, the probability is (1- 1/4), and the probability of winning the other three cards is 1/3, so his probability of winning the prize is: (1-kloc-0/).
By analogy, the probability of the third person and the fourth person is 1/4.
Note: The lottery mentioned here refers to the situation that a lottery ticket is drawn and not put back.
If you take it out and put it back for the next person to smoke, the probability will gradually decrease. If you are interested, you can explore it yourself.
Hmm. How interesting