I used Hextech Grinding to become a top student
Chapter 15: Good at Math, No Worries About Lotteries
There's only one day left until the monthly exam.
These past few days, I've almost completely caught up on math, chemistry, and biology. My Chinese and English are still pretty bad, but it's not a big problem; I can cram for those subjects at the last minute.
There's also physics that I haven't finished studying, because my main goal is to develop drugs, so I'll consider physics later.
After all, time is too tight. Learning in a few days what others take three years to learn requires some compromises.
This morning, Liu Weice and Huang Zhong woke up unexpectedly early.
Chen Mu rarely ate breakfast with these two guys, and Huang Zhong couldn't help but ask, "It's been a week, buddy, are you serious this time?"
"I was going to ask that too, Brother Mu, you've been lying to me a bit. I've quit pornography, so why can't I understand the lessons?" Liu Weice asked as well.
"How many days is it?"
"the next day."
"Try again on the third day."
"So it takes three days? That's quite difficult!" Liu Weice exclaimed.
"Stop daydreaming. Three days is harder than killing you. Brother Mu, are you really not going to play games anymore? Why do you have to study? What's the point?" Huang Zhong asked. "If you play games well, you can become a game leveler in the future and make money just the same."
"The biggest benefit of studying hard, I think, is that you won't get scammed," Chen Mu said.
"To avoid being scammed, do you need to study? Do you think I'll be tricked into going to northern Myanmar?" Huang Zhong asked.
"It's hard to say. Of course, that's a long way off. For example, let me ask you a question: If you win a skin in a lottery and they tell you the winning rate is 1%, what is the probability of winning if you buy 100 times?" Chen Mu asked.
"Of course we'll win!" Liu Weice interjected.
"Are you stupid? If it were that simple, would it even be a problem? So this problem isn't that simple. I think it's 95 percent," Huang Zhong said, thinking he was being clever.
"You're all wrong. The odds of winning are only 64%," Chen Mu said.
"Huh? How could it be so low?" Huang Zhong started calculating on his fingers, looking like a dazed person.
"Then think about it, if the odds of winning are 1%, and you're guaranteed to win if you buy 100 times, do you think you'll win 900 times if you buy 1000 times?" Chen Mu asked.
The two nodded immediately, realizing that something was indeed wrong.
"So if you don't study hard, you'll easily end up like some commentator who thinks that if the interception hit rate of a missile is 70%, then if I launch three missiles, I can get 210%. If a cup of water is 50 degrees, then two cups of 50 degrees together become 100 degrees," Chen Mu said.
"So how is this problem calculated? It's very simple. If the winning rate is 1%, then the losing rate is 99%. We multiply 99% by 100 times, and the answer is approximately 36%. Then we subtract 36% from one, and the answer is 64%."
"I see. My head is so itchy, I feel like my brain is growing. You're right, you've read a lot of words." Liu Weice said. He felt like he understood, but it didn't seem like he understood completely, but it should make a lot of sense.
"Then let me ask you, let me ask you, if you're so good at calculating, what are my odds of winning if I buy five million lottery tickets?" Huang Zhong asked.
"That depends on the probability. Let's assume the winning rate is 1 in 5 million. If you buy 5 million lottery tickets, the answer you get using the same algorithm is something I definitely can't calculate without a calculator, but I can estimate it roughly, which is more than 30%."
Even with 5 million tickets, you still only have a 60% chance of winning 5 million, but it will cost you 10 million.
"This is just a hypothetical scenario. In reality, the odds of winning are generally one in over ten million. If you want a 100% chance of winning, there is a way: buy all the lottery numbers, which is about 12.5 million combinations. So you only need to spend 25 million to have a 100% chance of winning the five million jackpot," Chen Mu said.
"Holy crap, I never knew math was so useful!" Liu Weice's eyes started to light up.
Chen Mu smiled slightly, and at the same time felt that there has always been a problem with domestic education, which is that it only teaches you how to take exams, but does not tell you what specific problems the knowledge you learn can solve.
Good exam scores, getting into a good university, finding a good job—these things are too distant and too unrealistic.
After all, some students will argue with you, saying things like, "I know someone who only graduated from junior high or elementary school but still made money."
There are also highly educated individuals who cannot find jobs, so this approach is difficult to completely convince people.
However, if you tell him that learning a certain skill will solve a specific problem, his enthusiasm for learning will be much higher.
For example, functions, which are a major headache for students, can help businesses analyze the relationship between costs, revenues, profits, and outputs. A change in one data point can directly predict the others.
It can also calculate design elevations, analyze the trajectory of moving objects, design optical systems, and so on.
Of course, many people may not be interested in this. So, if you learn math well, you can directly calculate how to win at cards and how to reach the highest rank in games.
The movie "Blackjack" tells the story of a group of mathematicians who make a fortune in Las Vegas.
These kinds of movies can actually inspire a lot of people's enthusiasm for mathematics, since they show that learning mathematics can bring practical benefits and solve real-world problems.
Of course, Chen Mu wouldn't publicize this, after all, I have no grudge against gambling and drugs!
However, schools don't teach you where each subject will be useful in the future. Focusing solely on grades, schools, and career prospects is too one-sided.
It makes people feel that the knowledge they learn is only for the sake of a diploma. In actual work, you can't use any of that knowledge and you have to learn it all again. Doesn't this hinder students' enthusiasm for learning?
Just learning about the odds of winning can make so many people lose all interest in gambling.
Because the expected value of math is too low, people who are good at math simply don't play games they can't win. If there's no 98% chance of winning, what's the difference between gambling and giving money away?
The three of them went to the classroom together to prepare for the morning reading session.
This morning, the homeroom teacher came to the classroom but did not rush to have the students read aloud.
Instead, they announced tomorrow's exam!
"Students, the monthly exam is tomorrow. There are only about 90 days left until the end of your high school career."
I hope everyone can make the most of this final sprint, because the college entrance examination will determine your first degree, and this first degree is very important.
You should know that in this society, even if you break the law, there will be people who advocate giving you a chance to start over. But if your first degree is low, then it will be low for life.
Of course, I'm not encouraging anyone to break the law or commit a mistake; I'm just talking about the real world.
Some people fantasize that after I go to university, I will study hard and get a bachelor's degree through the transfer exam. I got a bachelor's degree from a non-985/211 university, and then I will work hard to get a master's degree from a prestigious university. Wouldn't that make me just like them?
That's completely wrong. They're not the same at all. Big companies and corporations only look at your first degree. Some people say that a degree is just a stepping stone, and in the end, it's ability that matters. Of course, you're right. But what if it takes ten years for your ability to be recognized and validated? Or 20 years?
When you're almost retired and your abilities are finally recognized, others are recognized right after graduation. Who gets a high salary right from the start—who gets to enjoy life longer and more fully?
"Alright, everyone, let's continue with morning reading and memorizing!" Class teacher Tong Fei said with a wave of his hand.
After saying that, he gave Chen Mu a deep look.
He has been watching Chen Mu's performance closely lately.
All the teachers gave positive feedback; she was very attentive, never lost focus, and didn't disturb her classmates.
Of course, they also didn't listen to the lectures.
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