Real Cthulhu Running Game

"Oh? Then Apeng, you should know what's done with the three-color ball game, right? I went to observe it carefully that day and found that the people who participated in this game can be described as nine out of ten bets, but I really didn't watch it. I wonder what's weird about your brothers, because they didn't touch the bag containing the colored balls during the whole process, and they all let the participants handle it by themselves; and the sign put out by your brothers, Apeng, has ten numbers on it. A reward and a punishment, but why did those people get the punishment? If they were lucky, they would get the lowest level of reward."

Looking at Xia Fei who looked puzzled, Liu Xing explained with a smile: "This is the charm of arithmetic. If you go to Zhuzi Academy and find someone who is proficient in arithmetic to study this game, he will soon discover this game." I didn’t do anything, I just relied on probability to make money openly; if I remember correctly, there should be nine colored balls in three colors, right? And the only penalty is when you draw the colored ball The colors are four, three and two?”

"Probability? Logically speaking, the probability of drawing balls of each color is the same. How come the ratio of 432 is drawn every time? Shouldn't the ratio of 333 be the highest?" Xia Fei He said still puzzled.

Liu Xing smiled again, shook his head and said, "This would be more complicated if you insist on explaining it. Brother Fei, when you go back, you can find the corresponding number of colored balls, or marked chopsticks, etc., and then you can draw one A hundred times, you will find that the ratio of four, three, and two far exceeds other possibilities; then if you recall the signs on the stall, you will find that the rewards given by other ratios you drew do not count. More, because these proportions also belong to the kind of probability that is relatively easy to occur, so you have to get it all, unless you are very lucky, otherwise you will 100% suffer a big loss."

Even though Liu Xing said this, Xia Fei still said reluctantly: "I understand the truth, and I watched the excitement for a while when I was bored, so I also found that the frequency of four, three, and two is the highest, but I just I don’t understand why this is not 333? Logically speaking, 333 should have the most opportunities to play, right?”

Seeing this situation, Liu Xing felt a little overwhelmed, because if you want to explain probability issues in an easy-to-understand way, it is easy to fall into the cycle of proving myself. In short, the more you explain, the more people feel. Confused. . . What's more, Liu Xing can't explain it in an easy-to-understand way now, because Xia Fei and Yu Lei are just two ancient people who have never been exposed to mathematics or arithmetic. They need to understand what "probability" is. It's too difficult.

This is like the most classic meme on the Internet back then - why is this pigeon so big!

To put it simply, if you put aside the possibility of pure meme, the point of the pigeon meme is that someone does not understand "big near, small far", so he cannot understand why pigeons are so much bigger than people.

So for Xia Fei and Yu Lei at this time, they really don't understand what probability is. They just simply think that the numbers of these three kinds of colored balls are exactly the same, so naturally the ratio of three to three is the best. normal.

Therefore, Liu Xing now only felt a little headache, and began to understand the difficulty of the teachers. After all, when your students fall into misunderstandings in solving problems, it is difficult to get them out of the misunderstandings.

So Liu Xing thought for a while and said directly: "Actually, if there are only two colors and the same number of colored balls, then if six are drawn, the ratio of three to three should be the highest, which is also the most popular in our minds. The possible ratio, here we call it the expected value; and if it is a ball of three colors, then if we directly apply the expected value of the two colors without thinking, then we will think that three three three is the most likely, but it’s actually wrong.”

"The reason is very simple. If there are only two colors, when you draw it, it will be either this color or another color, so the probability of winning them is almost the same, just like when you are free to toss a copper coin, it will be either the front or the back. The low probability will stand; but when it comes to three colors, the situation will undergo some subtle changes. This is why we can make a steady profit without losing money. You must know that in order to calculate the most profitable method, we have spent a lot of money. After spending a lot of time experimenting, I finally decided to use three colors of nine colored balls to set up a stall and make money.”

Fortunately, this was Tianshui Town. After squatting down, Liu Xing grabbed a handful of stones and divided them into three roughly equal parts.

"I will give you a simple analogy here, that is, remove the cloth bag so that you can see clearly what happens when you take the colored balls! First of all, the three piles of stones here represent colored balls of different colors. They are placed in the cloth bag. Of course, the bag is mixed evenly, so I take out a random color ball every time; this process seems simple, but it is actually very complicated, because we assume that the number of these three piles of stones is the same. , so now that we have drawn out one stone, there is a pile of stones that is one less than the other two stones, so is the possibility of me drawing this pile of stones lower?"

As soon as Liu Xing said this, both Yu Lei and Xia Fei showed expressions of sudden realization. This made Liu Xing feel very relieved, and he also understood why there are people who are good at teaching others, because it is indeed a good idea to let others know things that they did not know before. It’s quite a sense of achievement and satisfaction.

As a result, Liu Xing immediately discovered that he had thought too much. . .

Yu Lei pointed to the other two piles of stones and said: "Since the other two piles of stones have more stones, the probability of them being drawn is higher, but if they are also drawn with the same number, then the three piles of stones will Aren’t the numbers the same again?”

Xia Fei on the side also nodded, indicating that he agreed with Yu Lei's idea.

At this moment, if Liu Xing hadn't been young, he might have been angered by Yu Lei and suffered a cerebral hemorrhage. No wonder others said that the teacher's probability of heart disease was very high. This was caused by years of anger.

Liu Xing took a deep breath, then shook his head and said: "You are wrong to think so, because this is the most ideal situation. It is just like the two of you usually have routines when practicing martial arts. It will be very smooth to fight with one set. , but it will be difficult to pull off this routine in actual combat. After all, you also need to adapt to changes; it is like two martial arts masters using the same martial arts fighting against each other. One of them is at the third-rate peak level, while the other is at the second-rate ordinary level. In theory, The latter is more powerful, but if the latter suddenly gets hungry, he may not be able to win."

Having said this, Liu Xing once again took away a few stones from the pile of stones, "So in the real world, there may be the possibility of taking away a certain pile of stones continuously, so there is the possibility that the other two piles of stones will be taken away." The sex will continue to increase, but since the number of the pile of stones is large enough, it is still possible that they will continue to be removed! Then the question is, since you all thought that three, three, and three were the most likely to appear at the beginning, but now Four stones have been taken away from a pile of stones, so does the one that has been taken away need to be separated from the other three, that is, four, three, and two!"

To become a martial arts master, understanding is definitely indispensable. Even Guo Jing, who seems to be honest and honest, is not stupid or stupid, he just has a better personality.

So Liu Xing talked about it for this reason, and Yu Lei and Xia Fei finally got the idea.

At this time, Liu Xing also received a message.

"Congratulations to the player for triggering the high-difficulty achievement - Being a Good Teacher (Difficult)! Because there are less than 100 players who have achieved this achievement, you will receive 1.5 times the achievement points."

"Be a good teacher: You will get this achievement when you teach NPC knowledge that transcends the times. This achievement will give different levels of rewards according to the difficulty of the knowledge. It is currently divided into three levels: easy, common and difficult. "

"Remarks: This achievement can be triggered repeatedly, but you cannot achieve it by teaching the same knowledge to different NPCs. Moreover, after the achievement of the same difficulty is triggered repeatedly, the rewards obtained will continue to decrease, and in the end you can only obtain Guaranteed five achievement points.”

"Note: Do not try to teach NPCs about nuclear energy and other related knowledge. Unless you can create the relevant knowledge system from scratch, you will be considered a super game."

Is there such an achievement?

Liu Xing was stunned for a moment, and then realized that the Cthulhu Run Game Hall had really taken on a role in this martial arts module, because it might have guessed some players, especially those who had just joined Cthulhu. Those players in the Cthulhu Running Group game lobby don’t like to fight and kill, not to mention that they are slashing there with real swords and guns. Therefore, for the gaming experience of these players and the rewards they can obtain, Cthulhu Running Group The game lobby also provides other ways for them to obtain achievement points.

For example, doing business around, making various pills and potions in the medical sect, or forging iron like Li Hanxing and the other three. If that doesn't work, you can also find a place to farm, because some players have triggered the farming task in the past two days. , that is, obtaining corresponding achievement points based on the grain weight at harvest and the yield data per mu.

Therefore, the task of "Being a good teacher" is prepared for those who want to be teachers, or who are already teachers in the real world. However, in order to eliminate some people who are just pretending to be teachers, this task also has a lot of restrictions, such as those who need to teach. The knowledge must be beyond the times. It is impossible for you to teach the ancients piano, chess, calligraphy and painting, right? Then maybe there will be an exchange of offense and defense.

All in all, Liu Xing felt that this achievement was worth the time he and Xia Fei Yulei had wasted. . . And I feel so tired.

Liu Xing looked at Yu Lei and Yu Lei who were deep in thought, and couldn't help but sigh. He was also glad that his two "students" were not bad at understanding, so they could understand what he wanted so quickly. the meaning to be expressed.

However, this also allowed Liu Xing to see a bright road, because the points reward for achieving this achievement are quite a lot. Although there is a difficulty bonus and a ranking bonus for the top 100 here, the achievement points after excluding all these bonuses It’s not too small. The most important thing is that the difficulty of triggering this achievement is not high, which means it only requires a few brain cells. But if you can find a few good students and prescribe the right medicine, it will be twice the result with half the effort.

What's more, Liu Xing has now discovered a bug, that is, the same knowledge should be taught by different players to different NPCs. This means that the alliance can integrate and publish a book "One Hundred Thousand Whys", and then players can take it with them. This book goes out to find two suitable apprentices, and then you can start earning achievement points.

If nothing else happens, this can at least earn four-digit achievement points! This is not a small amount. After all, Liu Xing does not have so many achievement points until now, even if he adds those achievement points he just obtained.

But when something goes "if nothing goes wrong", then it is very likely that something will happen.

So Liu Xing received a fresh system patch.

"All players who have triggered the achievement of being a good teacher, please note that in view of the fact that some players are using this achievement to obtain points on a large scale, there will now be a new note for this achievement, that is, the same knowledge can only be obtained in the same area. It can be triggered a certain number of times. The area here generally refers to the area of ​​influence of a certain city. Players please pay attention to your location."

Well, the loophole that Liu Xing just thought of was patched, which made Liu Xing a little depressed. However, Liu Xing did not feel depressed for long before he realized that the "probability" he taught has not yet made it to a hundred. If a player triggers the achievement, then you can at least let Zhang Jingxu and others trigger this achievement, right?

Thinking of this, Liu Xing found a reason to say goodbye to Yu Lei and Xia Fei, who were still thinking about the problem, and then found Zhang Jingxu and others to inform them of the matter.

"Is there such an achievement? The Cthulhu Run Game Hall is really a conscientious discovery this time. Since it is willing to let us players be teachers in the module? But it is also a thank you for your hard work, Liu Xing. This probability science looks like It seems quite simple, and we seem to be able to get started in elementary school, right? But if you really want to study deeply and systematically, you have to start after entering college, so I want to have some basic knowledge in the real world. It’s hard for people to understand this lottery scam, let alone in this martial arts module.”

Yin En said with a smile: "But Liu Xing, you have given us a good start now, so it will be much easier for us to trigger this achievement, but I don't know if it is that heartless guy who is doing this in Liangcheng." Street scam.”

"it's me."