Current Events > A little riddle. Try to give answer

Topic List
Page List: 1
EricDraven59
09/04/21 5:14:24 PM
#1:


Here is a little riddle. Which of you can guess the right answer? Give it a shot. Oh and don't cheat dude

Two coins were flipped and at least one of them landed on heads. What is the probability that both coins landed on heads?
... Copied to Clipboard!
nothanks1
09/04/21 5:14:56 PM
#2:


25%
... Copied to Clipboard!
ModLogic
09/04/21 5:14:57 PM
#3:


... Copied to Clipboard!
Paragon21XX
09/04/21 5:16:26 PM
#4:


33%

---
Hmm...
... Copied to Clipboard!
Tropicalwood
09/04/21 5:16:56 PM
#5:


The coin is the planet and the head is a room outside.

---
ayy lmao ayy lmao || oaml oaml yya yya
ayy lmao ayy lmao || oaml oaml yya yya
... Copied to Clipboard!
Lairen
09/04/21 5:17:53 PM
#6:


3.141592%

---
When it rains, it pours.
... Copied to Clipboard!
#7
Post #7 was unavailable or deleted.
Smackems
09/04/21 5:22:41 PM
#8:


9 of hearts

---
Common sense charged before shipping - some dude
... Copied to Clipboard!
DravenRainrix
09/04/21 5:24:37 PM
#9:


It's either 1 fucks out of 3 or zero fucks out of me.

---
Blah blah blah blah blah blah blah...
Diddly do diddly do diddly do...
... Copied to Clipboard!
Venger2112
09/04/21 5:25:12 PM
#10:


Yes

---
Freedom is the freedom to say 2 + 2 = 4
Trump wouldn't have existed without Rupert Murdoch
... Copied to Clipboard!
PMarth2002
09/04/21 5:27:58 PM
#11:


1/3.

---
They have taken untold millions that they never toiled to earn
But without our brain and muscle not a single wheel can turn
... Copied to Clipboard!
KnightofShikari
09/04/21 5:33:18 PM
#12:


a nickel and a quarter

---
The Earth is round. Two plus two equals four. Joe Biden and Kamala Harris won the 2020 election for President and Vice President of the United States
... Copied to Clipboard!
EricDraven59
09/05/21 11:28:33 AM
#13:


I'm sorry but only one of you got the right answer. The rest are wrong. But I'm not gonna mention who, as to not want the rest to feel bad. But I thank all of you for participating in this riddle :)
... Copied to Clipboard!
sabrestorm
09/05/21 11:29:48 AM
#14:


I m not good with math so I have no idea

---
The Truth is the Truth
... Copied to Clipboard!
viewmaster_pi
09/05/21 11:30:39 AM
#15:


jupiter

---
I wanted to change, with every breath
... Copied to Clipboard!
#16
Post #16 was unavailable or deleted.
Aristoph
09/05/21 11:40:02 AM
#17:


https://en.wikipedia.org/wiki/Boy_or_Girl_paradox

It's not a riddle. It's just an ambiguous wording of the problem that literally leads to 2 different (and equally correct) answers, depending on how the information that "at least one of them was heads" was obtained.

It could be either 1/2 or 1/3. There is no way to determine which case is applicable.

---
... Copied to Clipboard!
teep_
09/05/21 11:44:01 AM
#18:


Can someone explain the ambiguity? In particular, how does one reach the answer 1/2?
---
be the best 'cause nothing less will do
... Copied to Clipboard!
MI4 REAL
09/05/21 12:02:56 PM
#19:


1/4

---
"Er...well, y'know. You can't make an omelette without um...destroying a forest.....or something" -Black Mage
... Copied to Clipboard!
#20
Post #20 was unavailable or deleted.
Aristoph
09/05/21 12:23:48 PM
#21:


teep_ posted...
Can someone explain the ambiguity? In particular, how does one reach the answer 1/2?

It depends entirely on precisely how the "at least one of them is heads" is determined. From the wiki article I posted:

  • From all families with two children, at least one of whom is a boy, a family is chosen at random. This would yield the answer of 1/3.
  • From all families with two children, one child is selected at random, and the sex of that child is specified to be a boy. This would yield an answer of 1/2.


Replace "boy/girl" with "heads/tails" for coin flipping, obviously, but the premise is identical.

---
... Copied to Clipboard!
Topic List
Page List: 1