At the beginning of the new semester, Su Nan returned to campus.

It was probably a semester of running-in, and the atmosphere of the dormitory was okay now, and as soon as a few people arrived that day, they went out for dinner and had a hot pot.

However, Cao Yuhua was a little unlucky, as soon as she got out of the hot pot restaurant, her mobile phone fell to the ground, and it seemed that the camera was broken, which made her angry and scolded all the way.

Cao Yuhua loves to take selfies the most, and will often make video calls with her parents or Xia Yanzhi, and breaking the camera will kill him.

A nearby mobile phone store, but because Cao Yuhua's mobile phone is the latest Apple, because the school has just started, the relevant parts in the store are not complete, and it will take at least a week to use it.

Cao Yuhua changed three times in a row, all of which replied the same.

In the end, Su Nan comforted her, it's only a week, it doesn't matter if she waits, if she is in a hurry, she can lend her mobile phone to him, Cao Yuhua just gave up.

In a good university, teachers have their own tricks in order to make students listen to lectures.

For example, Su Nan happened to have general free time one morning, and she was bored and went to take Song Tingchuan's professional probability theory course.

Su Nan was surprised by the first class.

Because the title of the first lesson is:

From the perspective of probability theory, teach you how to get out of orders efficiently.

Tsk, this shocked the spirits of the average single dog who has just experienced a Valentine's Day beating.

I saw a string of bold characters slowly appear on the T.

The past Valentine's Day and Spring Festival have been the most merciless bombardment of the majority of singles, except for some people who are pretending not to care about nothing to do with it, those singles with lofty ambitions must be thinking about how to get off the singles quickly and accurately.

Getting rid of singles is a philosophy of feelings, and it is a game between men and women.

But if we return to rationality and think about this problem in a probabilistic way, maybe you can see a little light in front of the darkness.

How to make your chances of getting out of the order are infinitely more likely

The probability theory teacher knocked on the table and coughed lightly, reminding everyone that the main event was coming.

t page change

There are two ways to do this

1. Confess to the opposite sex who has the worst conditions around you and no one pursues;

2. According to the principles of economics, find the best way to match the success rate in the vast sea of people.

I guess you must refuse, so what about the second one

Before answering this question, let's look at a similar question

Keep turning the page.

How to reduce your investment risk

I'm sure you've learned this concept of standard deviation in high school.

It reflects the degree of dispersion of a set of data, for example, the mean of two sets of data is the same, but its standard deviation may be different.

There is a kind of risk in probability that can be measured in terms of standard deviation.

Let's consider the most common example of this, the larger the standard deviation of the portfolio return of a group of stocks, the more likely it is that the portfolio return is likely to change, and the higher the risk of the desired return if I hold this group of stocks.

It's good, the first few T's successfully wrapped everyone into the clouds.

After all, after a semester of college life, I have long forgotten all about high school knowledge, and most of them are confused when it comes to the concept of standard deviation at this time.

Well, the most calm is probably only Su Nan's.

Even she was still cooperating with the teacher and nodded in the affirmative.

Song Tingchuan next to Su Nan""

How could his daughter-in-law be so cute