Pure maths, physics, logic (braingames.ru): non-trade-related brain games - page 49

 
tol64:
So how did you come to this conclusion? )))
What do you think?
 
MetaDriver:
What do you think?
Your thoughts are more interesting. Answer. )
 
tol64:
Your thoughts are more interesting. Answer. )

Well, look for yourself!

If iteratively, successive probabilities would add up. And they multiply.

 

Everyone knows the children's riddle: A and B were sitting on a pipe. A - fell down, B - disappeared. Who was left on the pipe? The answer is the letter 'I'.

Who can translate the riddle into "mathematical language"?

 
alexeymosc:

There doesn't seem to be one yet.

(Not with braingames.)

Two mega-brains are playing. The first one has two coins in his pocket. One of them is fair, the other has tails on both sides. The megamotz randomly pulls a coin out of his pocket and tosses it, resulting in tails. The other megamogeek has to playfully name the probability that the chosen coin is a fair one.

1/2


And if the first MM flips a coin 10 times and gets 10 tails in a row, what is the probability that this coin is fair?

1/2

))))

 
Zeleniy:

Everyone knows the children's riddle: A and B were sitting on a pipe. A - fell down, B - disappeared. Who was left on the pipe? The answer is the letter 'I'.

Who can translate the riddle into "mathematical language"?

First, create a poll, "Do you think you can translate the riddle of ....?
 
MetaDriver:
1 / 3

There are only three tails in the deck, and only one of them is on a fair coin.

(1/3)^10 = 1 / 59049

// ... time must be recursive after all ....

Not to prompt, one of the answers is correct. ) The other answer doesn't agree with my solution.
 
alexeymosc:
Not to prompt, one of the answers is correct. ) The other answer does not agree with my solution.

Is it really 1/2 ???

))))))))

 
MetaDriver:

Is it really 1/2 ???

))))))))

Nat. OK first answer = 1/3 and it's correct.
 
Manov:

1/2

1/2

))))

Nope, conditional probabilities here.