Only people with an IQ of 115 or higher can get this right

Thebobo

Lifer
Jun 19, 2006
18,592
7,673
136
Like if a plane crashes on the border between canada and USA where are the survivors buried?

Or if there is rope ladder over the side of a boat and it stops 3 feet about the water and the tide goes up two feet how high is the ladder from the water.
 
Reactions: Mayne

Mayne

Diamond Member
Apr 13, 2014
8,836
1,373
126
Did you add that bottom drawing?

Whether or not you did, that image is forgetting one other outcome. Within the 2x Gold box, you can pick Gold ball #1 and then Gold ball #2, or Gold ball #2, then Gold ball #1. Those are two separate outcomes.

Knowing that, it makes the probability 2/3.

and you would probably be correct?
 

DigDog

Lifer
Jun 3, 2011
13,622
2,189
126
Im sorry,i love that you have a Group X quote as your name but according to your system, if you have ONE box only with two gold balls, you have 50% of pulling out a gold ball.

No. The answer is 50%.
 

brianmanahan

Lifer
Sep 2, 2006
24,300
5,730
136
if you knew anything about mayne, you would know that he lusts for wealth and as such would keep the other gold ball as close to him as possible

so i can clearly not choose the box in front of me
 

Red Squirrel

No Lifer
May 24, 2003
67,904
12,374
126
www.anyf.ca
I pretty much look like the guy in your avatar right now.

I want to go with 50%, but I think it's probably more complicated than that. Basically we can completely ignore the box with 2 silver balls because if we picked a gold we know the random box picked is one of the first two. But if you picked from the 1st then you have 100% chance of picking a gold ball again, but if you picked from the 2nd you have 0% chance. So I'm thinking you average it out and it's 50%... but I don't imagine it's that easy.
 

highland145

Lifer
Oct 12, 2009
43,551
5,958
136
Im sorry,i love that you have a Group X quote as your name but according to your system, if you have ONE box only with two gold balls, you have 50% of pulling out a gold ball.

No. The answer is 50%.
For Mayne, isn't it 0%?
 

paperfist

Diamond Member
Nov 30, 2000
6,517
280
126
www.the-teh.com
Like if a plane crashes on the border between canada and USA where are the survivors buried?

Or if there is rope ladder over the side of a boat and it stops 3 feet about the water and the tide goes up two feet how high is the ladder from the water.

How many survivors and what part of the border?
 
Reactions: Thebobo

Fern

Elite Member
Sep 30, 2003
26,907
173
106
I'd say 50%. Since you already chose 1 gold ball this eliminates the box with the 2 silver balls. So, it's 50/50.

Fern
 
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