I ve been thinking about the two color ball math problem for a long time, and I can t figure it out,

Hehe, I understand what the landlord meant, that is, he wants to double the blue ball to ensure that as long as the blue ball is opened, all the previous investment can be recovered, and there will be no loss.

The landlord meant to ask how much the 100th installment would cost.

Tell the landlord that this is a very amazing number, doubling with the landlord's method, to the 100th period, the current period needs to bet on the lottery, and at this time a total of 3 * 10 22 yuan has been invested (100 million is 10 8 yuan, that is, 3 trillion billion).

In fact, by the 30th period, the betting multiplier in the current period has reached 1.74 million times, and the money that has been invested has reached 8.71 million.

The exact formula is a bit complicated, and I used a program to calculate it. However, I can tell the landlord a simple estimation formula. The landlord can use (5 3) (n-2) to estimate the multiplier for the current period. n Duration.

The estimation formula is obtained in this way, the cost of buying a two-color ball is 2 yuan, the blue ball is 5 yuan, and the profit is 3 yuan.

Assuming that the m-period is a bet x times to guarantee a profit (that is, betting x times, if you win the lottery, you can recover the investment of the previous m-1 period), then the betting multiple of the m+1 period should be x+[2x 3], (representing the nearest integer, the meaning of this formula is x times to recover the investment of the previous m-1 period, and [2x 3] to recover the investment of the m period), so x*5 3 can be taken as the multiple estimate.

The reason why n-2 is used on the index instead of n is because it began to double at the beginning of the third period.

Hehe, okay, the landlord's question should be discussed.

I've thought about this question for a long time, and I can make it with excel, and I've done it.

If you do this personally, you will probably be able to do more than 20 periods, and after 20 periods, the investment will be very large.

If you only count to 20 issues, the investment is about a few hundred yuan, and I used to do ** Wait for me to find it, the landlord can send me an email, and I will send it to you after I find it.

I don't have to calculate, because your 5 yuan or 10 yuan in each period is not fixed, you can only know that you used 200 yuan to buy 100 houses!

Keeping a basketball, finishing each period, is so ideal? Besides, why did the first three issues only cost six yuan, and I bought four notes....

Dreaming, how do you guarantee to win the lottery every time?

Three consecutive numbers, the first period can be any number, as long as the last two periods are the same as it, so the probability is 16 -2 = 1 256

The lottery has to have betting numbers, where do the numbers come from? Since there are different views on this issue, the methods used vary. Now make a comment and analysis on the common number selection method for the reference of lottery players.

Selecting numbers ——— quick and easy. This method is the simplest, as long as the ticket salesman is told how many lines to buy, whether single or multiple, the lottery machine will soon display random numbers. Attentive people will make slight changes to the numbers on the screen, while most people simply don't look at them and leave them to fate.

Hardcore bettors don't often use this method because they believe that the odds of winning a prize with random numbers are low. However, many ordinary lottery players who occasionally buy a few bets use this worry-free method.

The software number selection ——— theory has a high probability of winning the lottery. At present, there are some shrinkage software on the market that specializes in designing lottery numbers, and it should be said that the probability of winning this computer-designed number is higher, and the important thing is to save money. For example, many of the football lottery winners used shrinkage software to hit the jackpot.

However, it is undeniable that the level of software designers determines the quality of software, so if you want to use this method, you must first refine a pair of discerning eyes.

The tool selection ——— is not subject to human factors. This method uses a variety of aids to design the betting numbers. Someone writes numbers on table tennis balls, puts them in a basin and stirs them up, then takes the ball in their hands, and combines the numbers on it into numbers; There are also people who write numbers on the playing cards and choose numbers after scrambling; In addition, there are a variety of special product types on the market, such as "lottery simulators".

The tool selection method can bring fun to the lottery people's number selection, and there is no need to do hard homework, there are many "lazy bugs" who rely on it.

The self-selected number ——— can be repeatedly modified. According to some data, two-thirds of the jackpot winners of lotto tickets use self-selected numbers, making this method popular with most lottery players. The advantage is that the betting numbers can be selectively designed and can be modified repeatedly.

The disadvantage is that all kinds of lottery books and materials on the introduction of too many serial methods,People are at a loss,Plus human factors,Always worry about taking care of one or the other,In the end, I get dizzy and may not be able to choose a beautiful code.

In my opinion, among the above several number selection methods, self-selection is better than machine selection, and tool selection is better than software selection. The reason is that the principle of tool selection is the same as the regular lottery machine is a random number, not subject to the constraints and restrictions of human factors, and does not need to work hard to use the brain, in line with the principle of buying lottery with a normal heart. Self-selection will be entertained in the lottery buying, why not.

Mathematics can only study regularities, while lotteries are irregular. So don't think about it.

If you cheat, the two-color ball will start to be counted after 8 o'clock! Then video, then replay! Because every time you buy it, the number will be recorded, and at the end there will be an hour and a half to continue counting.

Fucai company needs to count the number of each group number,Because what kind of number have people to buy,So there is a group of hundreds of thousands of notes,So every open period,Will be in the fucai company in the number of notes to draw.

In the past, there were small months where the time was 45 minutes, and the internal statistics cheating time was not enough, so it was changed to hours. There is no official explanation for this, and lottery players have to do it, because China's lottery is not regulated and lottery players have no regulatory ability and qualifications, and China's society is not like this?

There are few ways out in this society, and the people have to hope to get rich overnight. However, it is recommended not to buy more than one multiple, and do not invest a large amount of money. Otherwise, it will only be you who will lose a lot.

Even Wikibacco describes the two-color ball like this:

In the final analysis, the two-color ball has become a cash cow for some people, with a low return rate, all of which are operated by insiders, and the cheating is quite high. ”

The two-color ball sells 300 million per issue and makes a net profit of 100 million, if it is really taken out for charity, how can China's social painting be so sad?

To buy such a lottery ticket that has been seriously cheated, it is better to invest rationally.

It's calculated, but the data is huge.

I didn't wait for you to figure it out.

The prizes are all opened.

It's really impossible to count.

Hehe, whether you believe it or not, I don't believe it.