Crypto Trading Practice Platforms

Didn't expect Veeky Forums to be so retarded

you guys are dumb as fuck, you can't just add your own rules and assume he puts the ball back

the picture does not say that the ball is returned to the box.
there is only 1 ball remaining in the box, it is either the silver ball from box b, or the gold ball from box a, but you are a fucking dunce if you think its anything other than a 50% chance.

maybe this will make it clearer

are you all fucking retarded?
it says that you already have a gold ball. So box 3 is out of the game how can it be 2/3 or 1/3???

Golly you're a genius.
Have I got the coin for you.

These are the people who buy shitcoins, call it investing, and double down when the premine dump occurs.

p gold ball box = 2/3
p= 2 gold balls in a box = 1/3

multiply them together

kill me

but it says that you already have a gold ball

cos it is 50%, cunts just want to complicate shit

if you've already got gold, the ONLY actions you can get next is silver or gold, its not some complicated algorithm

practice with ten dollars u retard

Pro tip : If you're jew it's 100% chance to get a gold ball

...

But we can make it complicated if we ant to.

Lets assume that....

wow, nobody answered my fucking question and most of you seem to have gotten the answer wrong

>simple question
>people who are wrong start calling others names
>start assuming the others made incorrect assumptions (putting balls back? who would do that)

This thread is pure Veeky Forums

>And just do up an excel sheet yourself, much easier.
But I won't know when I'd be liquidated, etc.

Probabilities adjust based on conditions given. That's conditional probability, which is what this is.

The answer is 2/3.

If I pick a gold ball at random, the odds of that happening were 1/2 right? The boxes don't matter yet. I just picked a ball and it was gold, so the odds of that happening were 1/2. Now, of the gold balls there, 2/3 of them belong to box A and 1/3 belong to box B, correct? So the odds that the gold ball I picked belongs to box A is 2/3.

Because the question is asking us about the probability GIVEN that we already know the first ball is gold, you might think "well it could be from box A or box B, so 50/50." But the fact that we know the first one is gold and 2/3 of the gold balls are in box A should tell you that if I'm holding a gold ball, there's a greater chance it came from box A than from box B. So that knowledge, that condition that the first ball is gold, puts the odds in favor of it having come from box A.

Thus the probability is 2/3.

Just fucking trade with $5 or $10 or something, jesus. It's all the same since it's proportional.

1/3.
The odds of picking the box with two gold balls is 1/3.

How could it be 2/3? That doesn't make any sense.
1/2? Are you retarded?

To be clear:
>You pick a box at random and take a random ball out
>It is a gold ball
>That third box with two silver balls? You know for sure it doesn't fucking matter anymore.
>The only remaining possibilities for which box you pulled that goddamn gold ball out of are the first two goddamn boxes

Either you pulled it out of Box A and there's a gold ball remaining (50% chance) or you pulled it out of Box B and there's a silver ball remaining (50% chance).

The probability you pulled it out of Box C is the same probability you'll be successful in life.

2/3 would only be possible if two of the three boxes were full of gold balls.

Could you please get me which coins you're invested in? I need to avoid them at all costs.

It's 2/3. Please see If I gave you 5 coins and said 4 were silver and 1 was gold and asked "what is the probability that the coin I gave you is silver?" you wouldn't say "50%. it's either silver or gold." You'd say "80%. 4/5 of them were silver."

Same thing here. A condition was given which skews the odds such that you are more likely to have chosen from the first box than the second box, and thus if you are forced to choose from the same box again, it is more likely to be the first than the second. There is a 2/3 chance.

Here:
en.wikipedia.org/wiki/Bertrand's_box_paradox

Wikipedia article explains it too.

kek

you ruined the fun

Here's Wikipedia to explain it:
en.wikipedia.org/wiki/Bertrand's_box_paradox

It's 2/3. It makes sense. You're just not understanding the conditions involved.

friendly reminder 99% of crypto is a complete scam and you will lose all of your money if you continue to mess around with this trash

Huh.
Yep, I was wrong. It's 2/3.
Time to buy NMR.

>you pull out a gold ball
>"hmm, I might have picked a box with only silver balls inside"

this is how fucking stupid you are

friendly reminder that I made 500% on my money these past 3 months in crypto, took out my original investment, and have continued to trade for even more ever since. It's be pretty fucking hard to lose it all now.

tell us where he hurt you

>I can't tell if people are memeing around or this board is full of brainlets

Posts saying 2/3 are bait right?

...

THIS IS INFURIATING WHO IS THIS CUNT "TEACHER"?

That's american, isn't it?

>seen this picture 500 times before
>just realized the most retarded part is the word "reasonableness"

The choice of first box is irrelevant. The question is regarding what happens next not what has already happened. 1/2.

Ok I giggled. I admit I was like "but 5/6 is greater than 4/6....what?" for a few seconds too.

Blockfolio app.

Right. However, the second choice, of what's going to happen, has a condition placed on it which skews the results in favor of box 1. See:

This must be some kind of dividing line between people.
>Type A: "that's not possible"
>Type B: the pizza must simply be larger
Question clearly states that the child who ate the smaller proportion ate more pizza overall, and the only logical answer is that the pizza was larger
>hurhur actually we lied and he didn't eat more because it's not possible
American education, everybody

>The choice of first box is irrelevant. The question is regarding what happens next not what has already happened. 1/2.
...what already happened has affected the probability of what will happen... is this b8?

At the first stage there is an equal chance of picking any box. Once youve done that the probability restarts for any subsequent tests.

you'll end up losing it all cap this

take that money and invest it in general electric or something before you lose it playing with shitcoins

Well duh. It just took me a few seconds longer cause I'm tired.

>the probability restarts
The second choice has the condition of being the same box as the first. It's a conditional probability.

Again, given that I have 4 silver coins and 1 gold, and you choose a coin at random from me, there is an 80% you choose silver, despite there being only 2 possible choices, silver or gold. It's not 1/2. The probability is conditional.

I've been doing this for years you fucking dummy. Your losses are my gains.

But there was still a greater probability that you pulled the gold ball from the first box.

It's a bit of a mindfuck but once it clicks it's like, "whoa I'm retarded."

Check out the wiki article ybtV6baf linked.

>Well duh. It just took me a few seconds longer cause I'm tired.
I just mean in general, if that's the actual answer key's answer to this question, it's fucking retarded, lol

it was the famous 10,000 BTC pizza.

google for it, teacher!!

try again

Your answer is right but your picture is misleading.

If you rephrased the question as "Knowing that you have first picked a gold ball, what is the probability that that gold ball came from the box with 2 gold balls originally in it?" you would get the same answer but I bet a lot less people would be confused by it.

Is this some stupid meme, or are people actually retarded? if anyone ever says, the answer is anything but 50%, he needs to remove himself out of existence for the better of mankind.

what's 1/(1+1/2)?

2/3 , but have actually read, what needs to be counted? There is no choice after picking up the first ball. The question is, did you choose the box with 2 golden balls or the one with only 1 golden ball.

>The question is, did you choose the box with 2 golden balls or the one with only 1 golden ball
which one's more likely?
>inb4 equally likely

Bullshit.
Box with two silvers becomes irrellevant, you already know that one box has 2 gold and other has 1 gold 1 silver, but you are unable to see inside, therefore you have a 50/50 chance that its either box and therefore as a result of this you have 50/50 chance of getting another gold ball. The other explanation is jewd to make it seem like you have more chance than you actually do.

hahahaha

See I really want to know if my way of rephrasing it helps you or not.

Helped me when I started thinking of it that way.

1/3

...

Lets turn the question around, if you jad thr option of taking the other ball from this same box, or taking your next pick from the other box, which one would yoi choose ans why?

Mind my typos lol

You're fucking retarded bro.

You already have the gold ball. You don't need a 2/3 chance of picking the gold ball box, because you already chose the gold ball box.

>Pic mostly unrelated.

This thread is a perfect example of Veeky Forums users who lose everything in meme coins.

I would choose the box from which I withdrew the gold ball because it is statistically more likely to contain a second gold ball.

It does make more sense that way if you think about it.

66.666% chance the next ball will be gold. The 50% chance is you either picked the all gold or silver & gold box. Question asks about the next ball. If he picked a silver ball, it would 3/5 chance next ball would be gold.

40%

Boxes don't matter

Fugg time to remove myself for the better of mankind.

the boxes do matter. conditional probability. one of the boxes has no gold.

if you picked up a gold ball from the first draw, it is either
1. the gold ball from the gold and silver ball box
2. one of the gold balls from the gold ball only box
3. the other gold ball from the gold ball only box

2 out of 3 of these options would mean the second draw would be a gold ball, hence 2/3

lol it's ok

Lets be real here, you have two boxes you cant see into, you pull out a gold ball, the other ball could be a gold or a silver, becuae there are 2 gold in one and 1 of each in the other. Statistically there is a 50% chance it could be either, there is a 0% chance it could be bitbean.

I guess it also comes down to what type of person you are, im a pessimist so i view it like this, optimists may somehow view it at 2/3

whaleclub you get 5000 monopoly money

>A man walks alone on an otherwise empty street
>A woman cries
>Three dogs fight over a bone
>Two anons on Veeky Forums debate
>A woman cries
>A piece of paper flutters in the wind
>It is dark here
>A woman cries
>Your bitbeans sprout
>A woman cries
>1000 more baens
>A woman cries
>1000 more
>A woman cries

best explation, listed the outcome o every possible explination

good.
Seeing all of these replies makes me realize how far /biz has falled since end of 2014 when it was first created. Infested with poltars, r9ks and plebbitors

>Is this some stupid meme, or are people actually retarded?
Yeah they are, you're the living proof.

back to /pol untermensht

2/3 would be right if you can change boxes.

Not really. It could be either box. Here, I updated it using the explanation from (by far the best explanation I have seen)

lel, saving this superb answer. Just a great thread altogether