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make some money (hexbear.net)
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[-] Tachanka@hexbear.net 25 points 10 months ago

if my back of the napkin math is correct, you have less than a 1 in a 50 million chance of winning 32 hands of blackjack in a row, and that is assuming the very very optimistic odds of 50% per hand. But really it should be lower odds than that.

[-] TupamarosShakur@hexbear.net 39 points 10 months ago

But did you take into account that there is at least 24 hours between each win?

[-] Tachanka@hexbear.net 24 points 10 months ago
[-] Collatz_problem@hexbear.net 10 points 10 months ago

Isn't it roughly 1 in 4 billion chance? 1/2^32?

[-] Tachanka@hexbear.net 5 points 10 months ago

you're definitely closer to correct than I was. it's whatever this number is as a percentage: 0.000000000232830643654 = (or 2.32830643654e-10)

[-] Moss@hexbear.net 6 points 10 months ago

No? I think you're not very good at maths. The chances are 50%, because you'll either win or lose

[-] Tachanka@hexbear.net 2 points 10 months ago

so true bestie

[-] GreenTeaRedFlag@hexbear.net 1 points 10 months ago

but I don't think the odds of winning are fifty-fifty. every card dealt changes the odds that you'll win based upon how many later cards could have you win, as well as the rest of the table/dealer winning first. Say you get a face-value card first. you odds of winning are pretty good, as you can get really close to 21 without busting with whatever your next card is, there are 11 cards that could make you a lock on victory the next round, so the odds of winning in two rounds are 12/52 times 11/50. But, someone else could also get those two cards theoretically, and their odds are 11/51 times 10/50. but in actuality, your odds change when they get these cards, so i you both get face-value cards on the first deal the odds you' both get them the second deal are 12/52 time 10/50 and 11/51 times 9/49 respectively. Then either you bust first or get an ace. The odds of getting an ace are 4/48 at this point. meanwhile, the odds of busting are 44/48. so all in all, the odds of winning a perfect game would be 12/52 times 11/50 times 4/48, which equals a 0.423(rounded) percent chance. That is just one way to win, obviously, but my point is that the game is not 50/50, but a complex interaction of different probabilities.

[-] HumanBehaviorByBjork@hexbear.net 5 points 10 months ago

okay, now do the odds of winning 1 hand 32 seperate times

[-] GreenTeaRedFlag@hexbear.net 1 points 10 months ago

I think to properly calculate this, we'd have to work out every possible winning hand in blackjack, then work out the probability for each one individually coming up in a game. There's a more annoying question of how likely you are to win by not busting while others do, which makes the question unanswerable so we'd have to put in stock variable to work through it with.

This is the most I have thought about math in years and I'm surprised I can actually work it out somewhat.

this post was submitted on 17 Dec 2023
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