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5:46 AM
Q: Why does the "lotteries" tag exist?

suomynonA Why does lotteries exist? It doesn't help the answerer know anything about the question. You can't really be an expert in math questions about lotteries. It doesn't even have a tag description.

3 hours later…
8:32 AM
You can try to check also with arjafi's query, but it seems that the tag was created here. (At least, that was when I noticed it.) — Martin Sleziak 2 mins ago
@RodrigodeAzevedo Since you are the user who created that tag, I thought it might be reasonable to point out that the tag is now being discussed on meta: Why does the “lotteries” tag exist?Martin Sleziak 58 secs ago
2 hours later…
10:26 AM
Should we create tag? Stars and bars seems to be frequently used method in combinatorics.
I might be wrong, but my guess is that it would be more suitable for this question than .
Q: How many positive integer solutions are there to the equality $x_1+x_2+...+x_r= n$?

GingerThe original problem is there are $r$ identical boxes and $n$ identical balls. Every box is nonempty. Then how many ways of putting balls in boxes? It is equivalent to the problem of finding integer solutions for the equality: $$x_1+x_2+...+x_r= n$$ and $x_i>0$ for all $1\leq i\leq r$. Editte...

1 hour later…
11:27 AM
A new tag created by Rodrigo de Azevedo is . Is there some substantial reason why the already existsing tag cannot be used on those questions?
It seems that (gambling) was often used for such questions in the past: math.stackexchange.com/search?q=%5Bgambling%5D+bet math.stackexchange.com/search?q=%5Bgambling%5D+betting
The new tag contains at the moment 4 questions and in has empty tag-info.
Q: Arbitrage opportunity

shilovGiven odds $o_i$ for $i=1,2,\ldots,n$ and the possibility to bet the amount $b_i\in \mathbb{R}$ on each event such that if event $i$ occurs you receive $b_io_i$ and if it doesn't you recieve $-b_i$. I am trying to find out the condition for arbitrage. My immediate thoughts are that $1/o_i$ repres...

Q: What fraction of the fund should one bet?

Tobi AlafinSay we have a gambler who makes money through sports betting. My aim is to develop a model to help our gambler maximise his winnings and minimize losses. In my model, rather than betting a fixed amount of money, the gambler bets a certain fraction $0 < r < 1$ of his current betting fund. He cont...

Q: Betting a constant fraction on a biased coin

John ShihI'm looking at a betting game where I have \$100 and want to double my money by repeatedly betting on a biased coin; it shows heads with probability $p<\frac{1}{2}$ in which case I win even money. I imagine my best strategy is to go all-in, but I also wanted to investigate what happens if I bet ...

Q: Need help with proof for arbitrage betting

bytefireRecently I came across this article about sports betting arbitrage. The article gives formulas for calculating arbitrage profit and individual bet amounts for a two-outcome event. But it doesn't prove that those formulas will always yield the optimal arbitrage profit. Those formulas are reproduce...

@RodrigodeAzevedo I see that you have created new tag called (betting). Is there some reason why the already existing tag (gambling) cannot be used for such questions? If needed, we can continue this discussion in chat or make a post on meta to discuss this. — Martin Sleziak 30 secs ago
11:42 AM
@MartinSleziak I didn't know that the "gambling" tag existed. Also, "gambling" is derogatory, whereas "betting" is somewhat neutral. — Rodrigo de Azevedo 1 min ago
@RodrigodeAzevedo Honestly, I do not see how gambling is derogatory. As I said, I would prefer not to pile more comments here - this is not related to this question, it only happens to be the first question where you used the new tag. As I mentioned above, there are more appropriate places to continue this discussion. — Martin Sleziak 6 secs ago
@MartinSleziak Betting when the expectation is negative is "gambling". Betting when the expectation is positive is "investing". I do not oppose the merger of the two tags. — Rodrigo de Azevedo 53 secs ago
Wikipedia article on Gambling: Gambling is the wagering of money or something of value (referred to as "the stakes") on an event with an uncertain outcome with the primary intent of winning money and/or material goods.
@RodrigodeAzevedo I have made a post on meta, so that these two tags can be discussed: Do we need separate tags for (betting) and (gambling)?Martin Sleziak 21 secs ago
11:57 AM
Q: Do we need separate tags for (betting) and (gambling)?

Martin SleziakQuite recently the betting has been created. However, for a long time there is a tag called gambling. To me the two tags seem rather similar Personally, I do not see great need for a new tag. And a quick search suggests that this tag has been used in the past for questions about betting. What w...

3 hours later…
3:06 PM
The tag has been created in this question:
Q: Example and counter-examples for the tauberian theorem of Hardy-Littlewood

E. JosephWe know the following theorem: Theorem (Hardy-Littlewood). Let $(b_n)$ be a real sequence such that (i) $(nb_n)$ is bounded, (ii) $\displaystyle\lim_{x\to 1^-} \sum_{n=0}^\infty b_n x^n=\ell$. Then $\sum b_n$ converges and $\displaystyle\sum_{n=0}^\infty b_n=\ell$. The que...

I see that you have created (tauberian-theory) tag. It might be useful to create also tag-wiki or at least tag-excerpt. It might help other users to use the tag correctly. (This is probably not a problem here, since the tag name seems to be descriptive enough.) Another reason is that the tags used on only one question are automatically deleted after certain time unless they have tag-wiki. — Martin Sleziak 45 secs ago
@MartinSleziak You are right, but I wouldn't know how to describe it... Like you said, the tag-name is quite descriptive. — E. Joseph 40 secs ago

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