Let's see how smart Any Forums is

Two thirds after reading the full question

You pick a box at random so you have the choices A, B or C.
It's a green ball. Since only the boxes A or B have a green ball, you picked one of those two boxes.
What's the chance of the other one being green? 50%.
If you said anything else your IQ is most likely below 80 because you clearly missed the part where it says right in the text that you got a green ball already.

>2 boxes guarantee 2 green balls
???????

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cut and dry 50%. Two outcomes remain, and one of them is green.

how about this one?

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2/3. You know that it's not box 3, as both balls in that box are red. What you're essentially doing is taking 1 green ball out of the first 2 boxes, leaving 2 green and 1 red left, then picking a remaining ball at random. This gives you a 2/3 chance of the ball you pick being green.

ITT: ameritards have no reading comprehension

You all are stupid and fell for the meme. There are actually 3 possibilities after picking a green ball, not 2.
>You picked green ball 1 from the left box: the other ball is green ball 2
>You picked green ball 2 from the left box: the other ball is green ball 1
>You picked the only green ball from the middle box: the other ball is red
2/3, 66%.

You know there's a box with 2 green balls, a box with a green and a red ball and a box with two red balls.
You already chose a box and got a green ball. So you know it's either the box with two green balls or the box with the green and the red ball, leaving you with a 50/50 chance

you're so dense its astonishing, it statistically doesn't matter if you pick green ball 1 or 2 from the left box

Holy shit is this correct
Did I really not recognize a monty hall problem knockoff

There's zero difference between the green balls in the left box. Picking one or the other, it's a green ball. Stop trolling.
The question was high big the probability of the other ball also being green was. There are only two boxes with green balls. You picked one of those two boxes. Since you know one box has two green balls and one has a green and a red ball, the probability of the other ball being green is 50%.

what the fuck is with you guys this is basic Bayes' theorem. it's 2/5

>obvious samefag is very obvious

retard retard retard retard retar d reta fd

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>whats inspect element
youre not fooling anyone, samefag

Inspect element samefag is inspect element samefag

50%
It either is or isn't.

Autism (you have it)

Not possible here's what wolfram alpha says

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Monty hall problem includes switching boxes.
Youre sub 0 IQ

Okay samefag whatever you say

>not knowing the answer to a meaningless MS Paint probability puzzle makes you sub 0 IQ
EPIC RTARD

the american education system must really be failing if americans cant even properly ask a fucking computer to do their work for them

>H-heh its done in MS paint therefore it doesn't matter
highest grade copium

>does not realize that there are real world situations which require calcualting probability of an event

Thinking that it's a Monty Hall problem makes you zero IQ.
Also Monty Hall suffers from a similarily fishy wording