After some deduction and calculation, Xia Lu gave his answer:

"If a quality boxer with a 60% return has emerged in the first two years, then a boxing agent should invest in the first or second year. ”

"If there is no quality boxer with a return of 60% in the first two years, then the boxing agent must make an investment in the third year, if there is a quality boxer in the third year, invest in a good boxer, if not, invest in an ordinary boxer. ”

In the final analysis, Xia Lu still uses the 0.368 critical point algorithm in Bayes' theorem.

7 years multiplied by 0.368 equals 2.576 years, so under the premise of not knowing when a high-quality boxer will appear, boxing brokers should make an investment behavior in the third year at the latest, so as to obtain a higher probability of maximizing returns.

The British Pastor Bayes's hobby was mathematics, and the theoretical system he created is now widely used in many fields such as statistics, information engineering, artificial intelligence, ecological environment, finance and even philosophy.

Xia Lu checked the math test papers, mainly to check whether there were any omissions in the derivation process of the last question.

Checked and checked, corrected a few scribbled places, and when the time came to hand in the papers, Xia Lu handed in the papers and left the examination room.

The winter night came early, and after the exam, it was already daylight, and the voices were silent.

The reason why the plum garden is a plum garden is because the area is full of plum trees.

The night is not young, the wind is getting cooler, the hustle and bustle is silent, and the plum tree is brilliant alone under the lamp.

Xia Lu shuttled through the plum garden, and couldn't help but think like a spring, he borrowed the scenery to lyrical, and improvised a poem:

Pacing, next to Kunpeng.

The stairs are over, and the door is crowded.

The red plum is proud and blooms in the wind.

The evening breeze pours my mind, and the moon is full of Luojia Mountain.

The lakeside is lit up and the stars are shining before fasting.

Stop and smell the flowers, I want to sing loudly.

She is a branch of the night plum, I am a passer-by by the tree.

Flowers have a reblooming day, and no one is young.

Year after year, a few more years?

After Xia Lu finished writing a poem, snowflakes fell in the night sky.

The red plums in the snow are particularly delicate, and they stand tall in the snow, showing the style of the three friends of the year.

"Damn, it's too fierce!"

Xia Lu chanted a poem, which attracted the world to be moved.

God was moved to cry, and God's tears condensed into snow and descended on the world.

In the year of Ruixue Mega Harvest, the coming year will be a bumper harvest of grains, the people will be rich, and the country will be prosperous.

The first snow in the city this year was groaned by Xia Lu.

"Such a beautiful poem, all ruined at the end of the groove, this groove is the biggest failure, hey, it's a pity, it's a pity. I saw a person flash out from behind a plum tree, this person was wearing a thick blue down jacket, the hat of the down jacket wrapped around his head, and a mask covered half of his face, revealing only his eyes.

Hear their voices, know their people. Xia Lu said to this person: "Ma Jielin, could it be that you have been squatting here for a long time?"

Ma Jielin took out her mobile phone to shoot the plum blossoms blooming in the snow, she said while shooting: "I happened to pass by, and I happened to meet Xia Da Shiren who was chanting poems here. ”

"It's also a coincidence, every time it rains or snows, I can meet you outside. I remember the last time it was a rainy day, I was picking up cats under the car, and then you showed up. It snowed today and you showed up again. You say, why is that?" Xia Lu looked at Ma Jielin, who was tightly wrapped, and thought it was quite interesting.

Ma Jielin opened her mouth and came: "The rain and snow are ruthless, people are affectionate, the love is far away, only the fragrance remains, and the Dan heart is taken care of, and the green mountains are the same as the clouds and rain." ”

"Wonderful, wonderful, it's really a talented girl in the Faculty of Letters. Xia Lu gave a thumbs up and expressed his appreciation for Ma Jielin.

In front of it, there is Xia Lu praying for snow with poems, and there is Ma Jielin's poetry solitaire in the back.

Ma Jielin's hand poetry solitaire is quite technical, the first word of the last sentence is connected to the last word of the previous sentence, and the first sentence is connected to the first sentence after four sentences in the seven absolute format, which cleverly answers Xia Lu's question.

All this happened in a blink of an eye, which shows that Ma Jielin has something in literature.

"Generally average, third in the Faculty of Letters. Ma Jielin laughed, and then said: "Xia Lu Lao Shi is original, I am just a poetry porter, in literature, especially poetry and songs, I am far worse than Mr. Xia." ”

"Xia Lu, I automatically filtered the failure at the end of the poem you just read. Year after year, Shaohua for a few years, including this sentence, I want all the previous sentences. Ma Jielin made a request.

Xia Lu asked, "What do you want?"

Ma Jielin said: "The articles written on the Luojia official account, most of the articles with literary and artistic attributes in the official account are written by our students of the School of Literature. ”

Xia Lu was refreshing: "Then you can use it, five yuan per word, anyway, there are not many words, and you can't use a few dollars." I won't take you this money either, so it's OK for you to have this meal tonight. ”

Ma Jielin's eyes blinked: "Five yuan for a word, five thousand yuan for a thousand words, this is the treatment of the top writers, such a big platform, there are only a handful of platinum writers with a thousand words and five thousand yuan." Summer Road you swelled. ”

Xia Lu asked, "What is it?"

Ma Jielin, who only showed her eyes, showed an undoubted look in her eyes: "Nonsense, the starting point is the first in the world, and it crushes the second with a huge advantage." ”

Xia Lu nodded and said, "Oh, it turns out that the starting point is so hanging." I just said it casually, and I didn't really want to ask you for money, the clumsy work just now, you can use it if you like, it's free. ”

"Thanks, tonight's meal AA. ”

"Let's go. ”

Xia Lu and Ma Jielin went to a spicy fragrant pot shop outside the school, and it was more appropriate to eat some warm food on such a cold day.

"Is your short-legged little orange cat okay?" asked Ma Jielin.

"It's very edible, and there's already a trend of pig-becoming a pig. Xia Lu shook his head and smiled.

"Sure enough, it's an orange cat, and the big orange is the most important. Ma Jielin is also a person who understands cats, chatting and chatting, she said: "Xia Lu, your literary level is not inferior to that of liberal arts students in the same period, our Faculty of Literature regularly holds literary salons, which is quite fun, do you want to come and have fun?"

Xia Lu shook his head: "Isn't the literary salon just a group of literary and artistic young people sitting together blowing water? Either moaning without illness, or cyberpunk, the whole world is turbid, I am alone, the human world is completely degenerate, the Trisolarans come and save us." ”

"No, you'll know when you come, it's so cool that you'll be addicted. ”

Ma Jielin vigorously advocated that the literary salon of their college of letters was well organized, but Xia Lu was a little interested: "Yes, what if I go and find that it is not so cool?"

"Bao Shuang Bao Shuang, not happy to lose money. Ma Jielin was so refreshing, she made Xia Lu feel funny like this.