The busy state of attending classes during the day and making up exams at night did not have any negative impact on Chen Bo's physical functions in the slightest, on the contrary, he enjoyed it.

Although his brain would wander into the middle of nowhere, there would always be an unknown force that would pull his mind back on track.

"Today we are going to talk about data analysis and statistical caliber, please turn to page 37 of the textbook."

This course was added temporarily, and there was no warning when the message popped up, no one informed him, and Chen Bo originally wanted to continue to attack the city, but now he had to slow down temporarily.

"Wake up, the teacher is already lecturing."

Seeing that Wang Xu hadn't gotten up yet, Chen Bo shouted a few times intimately.

There was a weak response through the bed curtain: "I'm lying on the bed and watching, I don't want to move around, I have been staying up late late, and my muscles and bones are not good." ”

"Go to bed early and get up early to nourish your body, and the remaining historical problems are finally solved, which is not easy." Chen Bo counted the remaining number of failed courses, and a look of victory overflowed on his face.

"This student No. 27, please turn off the free microphone." The teacher's reprimand came from the other side of the screen.

Wang Xu half sat up and lifted the bed curtain, and yelled at Chen Bo: "No. 27, it's you, Shabi, fortunately, the volume of my headphones is not very loud, otherwise you would have been deaf." ”

"Huh? When did I get to the Liberty Microphone? Chen Bo was in a hurry for a while, but he couldn't find the location of the microphone.

"In the lower right corner, there is a gear-style label, click on the third one." Wang Xu saw the embarrassment of the other party and sat in the rescue.

"It turned out to be there, how did I get there?" Chen Bo scratched his head, it stands to reason that this position should not be touched by mistake.

"Maybe there's something wrong with your computer's key settings." Wang Xu couldn't figure out the situation either, and when he saw that the embarrassment was lifted, he lay down and flattened again.

When—

"I'll go, how can I hit the back of my head, I didn't move."

Wang Xu turned on the resentful woman scolding mode, and compared it with an emotionless bedrail.

"Please turn off the five senses perception mode of student No. 18, your leek dumpling flavor floats along the network cable."

"There is also student No. 59, don't turn on the camera when squatting in the pit, it will affect the class experience."

"Student No. 7? Can you hear me? Are you confused or awake right now. ”

"Teacher, I can hear you, I just fell asleep and feel good about myself." Student No. 7 gave feedback quickly.

"It's good, I'm still sleeping at half past four in the afternoon, and 10 points will be deducted at the end of the period."

Student No. 7 hurriedly said, "Ah, teacher, listen to me, I'm preparing for an elective thesis on dream awareness and reality feedback, so I need a lot of sleep." ”

"Oh? Is that so? Then you give me the transcript of this elective at the end of the semester, and I will give you as many points as he gives you. The teacher thought about it and gave another way to solve it.

"Okay."

Seeing that the class still could not start after a delay of more than ten minutes, the teacher had to reiterate the discipline again.

"Considering the suddenness of the course, it is understandable that everyone is in a bad mental state, after all, I also received the class notice half an hour ago, but please pay attention as much as possible and do not miss the knowledge points taught in class."

"Hey, hey, hey, why can't I open that e-book, it shows that there is no copyright." Chen Bo suddenly realized that his textbook could not be opened, and he kept staying on the catalog page, all rights reserved, and the words "piracy must be investigated" were very eye-catching.

"Because you didn't buy it, it's such a simple truth, pay in the lower left corner, and you can see it right away."

Chen Bo just took out his mobile phone and was immediately frightened away by the price.

"What kind of book is this, 1388 yuan a book, it's so expensive, it's better to grab it, I've never seen it so expensive when I studied abroad before."

Wang Xu explained: "This is a collection of books, not only basic concepts, but also a large number of test questions, the whole book is more than 50,000 pages, 1388 yuan is cheap, you think about the chicken soup literature outside, a book of tens of thousands of words sells for hundreds of dollars, that is the pit person." ”

"Well, for the sake of class, I bought it." Chen Bo reluctantly paid the money, and after pressing the confirmation button, his whole little hands were trembling.

I thought that the expensive price could make good goods, but I didn't expect the content in it to be unpretentious, nothing more than some basic concepts in statistics, mixed with some professional terms and mathematical models, each small knowledge point explained with a few examples of inferences to consolidate and improve, Chen Bo took a few looks, and did not find anything new.

In this lesson, the teacher mainly talks about statistical caliber, which refers to the standard used in statistical data, that is, the specific connotation of statistical data.

Before data collection, screening and analysis, we must first formulate a complete and rigorous statistical caliber to ensure the validity of all data under the operation of existing rules, so as to obtain valuable data.

The teacher gave an example in life to measure the annual income of a wage earner, the most common view is pre-tax income plus bonus performance, when the job seeker asks HR about the salary, the other party gives a price of 100,000 a year, and the subtext to the job seeker is that the pre-tax income + bonus performance is about 100,000.

However, some employers will include the five insurances and one housing fund borne by the unit in the annual income, which is a bit of a hooligan, although the ultimate beneficiary of the five insurances and one housing fund borne by the unit is the employer itself, but this will bring certain psychological misunderstandings to job seekers, and produce an expectation gap and distrust after entering the workplace, which will lead to other unnecessary cost risks.

A simple pre-tax annual income of 100,000 yuan corresponds to a month of 7K before tax and a year-end bonus of 20,000, but if you count the five insurances and one housing fund borne by the unit, if you still have an annual income of 100,000, you may only have a monthly income of 6K before tax and a year-end bonus of 10,000 5, and the income gap between the two is close to 20,000.

The routine of lying about the unit's labor cost as income is unpopular, but there are other more hidden practices, which are common to divide the original dead salary into the form of performance + salary, which is ostensibly to motivate employees to produce value and prevent fishing, but it is also a trick to reduce the burden of enterprises.

The teacher took five insurances and one housing fund as an example, assuming that Li Hua's salary was 10,000 yuan a month, and the original payment of five insurances and one housing fund was based on 10,000 yuan, but the basic salary was 5,000 yuan and the performance was 5,000 yuan, and the payment base would drop from 10,000 to 5,000.

The welfare and security system of large factories that are not short of money is relatively perfect, even if the wage + performance model is adopted, the payment base is based on the average monthly salary of last year, which has little impact on the whole, while small enterprises can save money, and everyone is a temporary worker.

In the past, the only way to calculate the average salary in a region was to rely on the declaration records of the tax system and the conscious registration of individuals, which was very distorted, and was often ridiculed and dragged back by the average number theory.

According to the extension law of the 28th law, assuming that the social wealth is 100 units and 10 people are divided, the first 20% of the people will take 80% of the wealth, and the relative top 20% of the last 80% will take 80% of the remaining 20% of the wealth, so the wage and salary range obtained according to the average will probably fall to the top 25% ~ 30% of the income, and it is no wonder that most people will feel that they are dragging their feet.

In order to ensure the accuracy of the statistical results, a large number of dynamic indicators were introduced into the statistical caliber of wage problems, first including the existence of the median and the mode-reducing average, and then deriving the concept of wage range.

Finally, with the explosive growth of computing power, the development of salary big data statistics, any indicator can become a measurement caliber, you can know how many descendants in the same city and age group are better than you, you can also know how many life winners are worse than you but have married and have a second child, and even through inflation and changes in the average purchasing power of a basket of currencies, you can become a human being 30 years ago.

I'm so poor, this used to be a helpless self-deprecation, now it's just a simple joke, in a fully transparent society, users know the direction to explore the future path, although far away from the destination, but everyone is hopeful about it.

"Oh, damn it, it's time for class so soon, don't let me stress discipline next time, I don't necessarily have one class a semester, why should I go." The teacher pinched the time and clocked out on time.

"It's really a beautiful blueprint, and I'm glad I live in this era." Chen Bo, who was still unsatisfied, almost fell off the chair.

"Do you think so? See more, think more. Wang Xu changed his clothes and lay on the bed for a day, and it was dark outside.

"Let's go, let's eat."