A disc-shaped item lies straight in the mall, emitting a soft and luxurious golden light.

The light shone brightly and shone, and Wang Yan could smell the smell of getting rich.

After a closer look, it turned out to be a turntable?

Hey, what a fresh prop!

【European and African Roulette (Elementary)】

【Number of use: 1】

【Selling price: 1 million】

[Explanation: Some people always feel that they are so arrogant, but they are actually covered in black flesh. Please don’t have any more mouths and spend money to verify!]

Oh, I'll go!

Broken props are quite provocative?

Wang Yan was a little dissatisfied and rolled his arms and sleeves, and he wanted to try it right away.

However, after reading the specific details... I was depressed.

There are 10 grids in total, divided equally, and each grid accounts for 10%.

There are four colors, namely white, green, blue and gold.

White is three grids, with no prizes inside, but four words are written. It is not a relatively polite "Thank you for your patronage", but a biting ridicule - the No-Chief is getting thick!

Obviously, there is a 30% chance of turning tables and losing all your money.

If you are at the next level, you will have four green grids.

The four prizes are different. Wang Yan first focuses on the price. The cheapest one is the price, the mall price is 200,000 yuan, and the most expensive one is 800,000 yuan.

This means that there is a 40% chance of losing 200,000 to 800,000 yuan.

There are only two blue prizes, with prices of 1.5 million and 2 million respectively.

The last one left is a golden reward, with a price of...5 million!

So the result is obvious. Wang Yan uses primary school mathematics knowledge to calculate it and knows that the probability of a 40% loss is small, the probability of a 30% loss is lost, the probability of a 20% loss is small, and the probability of a 10% profit is big and a special profit is very big.

"Stirsty hooligan!"

Brother Fugui was so angry that he was extremely dissatisfied with the black heart system.

If the probability of winning or losing is 50% versus 50%, it can at least be considered a fair bet. If it is really wrong, then no one will blame you. You may be unlucky if you hit the wall and admit that you are unlucky.

What the hell is this now?

70% probability of loss!

I'm just stupid and play with you!

After Wang Yan finished scolding, he glanced at the cash in the panel, removed the 100,000 yuan he had paid for Chen Xiang, and 1.62 million yuan could be used at any time, and then gritted his teeth.

"Payment!"

Remaining salary: 620,000.

System experience: 719/2500.

Items held: Destiny Son, Supernatural Card, Double Food Card, True Heart Card after Drinking, European and African Roulette (Elementary)

Damn?!

Didn’t you say you didn’t gamble?

Mr. Wang, why are you so inflated?!

Wang Yan is not really inflated.

The result of primary school mathematics is a loss of blood, so you are primary school students, hehe.

Brother is 79's intelligence, and the best among the excellent ones!

And the statistical basics that I just learned are really not for nothing.

In probability theory and statistics, there is a specific concept called "bsp; expectation     value", which is translated as "mathematical expectation value".

Putting aside the definition, let’s give the simplest example - all casinos and gambling projects designed to apply this concept.

For example, in Las Vegas roulettes, similar to the European and African rotating wheels, there are 38 grids in total, corresponding to 38 numbers. You can place a single number for 1 dollar and get 35 dollars in hit.

Calculate the mathematical expectation value and the result is -0.0526.

That is to say, on average, every dollar bet by a gambler will lose 5.26 cents to the casino.

This is a fixed probability. As long as the sample number is large enough (there are enough gamblers), you will make a steady profit and will not lose money.

Therefore, there is no need to pay a thousand yuan for a regular casino, so you can earn money every day by recruiting customers.

After Wang Yan complained about the system's black heart, he instantly calculated the mathematical expectation value of the European and African turntable.

(500×10%)(200×10%)(150×10%)-(80×10%)-(60×10%)-(40×10%)-(20×10%)-(100×30%)=350,000

Mathematical expectations are positive.

This means that as long as you play it enough, you can earn 350,000 per game on average.

Just be stupid and don’t gamble!

Not only do you have to bet, but you have to bet forever!

Please come out with the mentally retarded system and refresh the turntable every week for me. Do you dare?!

System:o((⊙﹏⊙))o.

If the system is wise, it will definitely curse.

I give you so much money every day to let you go out and squander your car. If you don’t drive well, just learn all the messy things!

If you use mathematical knowledge to pit the system, what kind of wealth are you?

(╯‵□′)╯︵┴─┴

fall!

...

However, the system was not smart, so the room was very quiet, with only Wang Yan's excited breathing sound.

"Start the lottery!"

The turntable turns, the pointer passes through white, blue, green, golden...

Finally, by a slight difference, it passes through another white area and finally stops in the green area.

Mama!

Losing!

However, Wang Yan just complained without any regrets.

It is impossible to make a profit every time, but as long as the system does not change the design and the mathematical expectation value remains positive, Wang Yan dares to play with Ya until the end of the world.

A genius who understands mathematics is so confident!

After taking out the final reward, Wang Yan was happy when he saw it.

Eh?!

It seems that I didn't lose anything?

Prize is a skill book.

[Hard pen calligraphy (master-level regular script)]

[Elevate your hard pen writing level to the master level, only one step away from the master]

【Selling price: 400,000】

[Note: Only for regular regular script. Traditional, running, clerical, cursive, seal script and other styles need to be learned by yourself]

Is master-level regular script useful?

Not much use.

In modern society, there are fewer and fewer places to write, let alone a genius like Wang Yan, there is absolutely no chance to write something by hand.

But another question: Is it worth it?

It's so worth it!

How could it be worth it to spend 1 million to buy a master-level skill?

As a tycoon, you will never be short of money.

Therefore, anything that can improve one's own quality is worth it as long as it can be exchanged for money.

Wang Yan happily used up the skill book, and in an instant, a lot of knowledge surged out of his mind.

There was paper and pen on the office desk. Wang Yan sat down enthusiastically, pondered slightly, and wrote down four names.
To be continued...