Puzzle 21
Hi.
Back after a super long and unbelievably mentally draining test schedule...
Sianz... Just hope everyone does well for the CTs... :)
Requesting to "remove" some parts of the superficial whiteboard at the back of the class to make space for some of the mini-puzzles. Apparently nobody is updating it.
Alright, since some people are starting to get bored of studying (including me) I shall continue my puzzle posts. Again, please post your answers as comments! :D
Difficulty: Medium
Due to the latest class frenzy over soft toys, I have decided to make this puzzle about them.
As you know, there are a number of soft toys on the shelf at the back of the classroom. There are 6 soft toys there.
Classmate A, let's call her Sherlyn for simplicity, wants the dolphin soft toy. Classmate B, let's call her Chan Ming again for simplicity, also wants the dolphin soft toy. Though, they will do fine with just any soft toy.
Sherlyn and Chan Ming then decide on a way to see who picks what soft toy.
They both close their eyes. The arrangement of the soft toys are mixed around. Then, with their eyes still closed, Sherlyn will first pick a soft toy at random, followed by Chan Ming.
Who has a greater chance of getting the dolphin soft toy, Sherlyn who went first, or Chan Ming who went last?
Yes, it looks quite hard to comprehend, but really the only parts you need to know is the 1st and last paragraph. The rest is just story.
Now for the answer to Puzzle 20, but you don't really need it right? In case you need it, drag your mouse over the empty space below to reveal the answer.
Yes, you should switch doors. Your chances of getting the wrong door halves if you decide to switch doors.
This is known as the Monty Hall Problem.
Initially, when you chose the 3 doors at random, there is 2/3 chance you picked the wrong door (since 2 of the doors are wrong). Hence, you if you switch, you can switch that wrong door for the correct one. Your chance of getting the correct door is 2/3, and the wrong one 1/3, hence the odds that you will end up with the wrong door halves!
Je suis crevé, j'ai trop de boulot.
:|
Glen
Back after a super long and unbelievably mentally draining test schedule...
Sianz... Just hope everyone does well for the CTs... :)
Requesting to "remove" some parts of the superficial whiteboard at the back of the class to make space for some of the mini-puzzles. Apparently nobody is updating it.
Alright, since some people are starting to get bored of studying (including me) I shall continue my puzzle posts. Again, please post your answers as comments! :D
LUCK AND PROBABILITY (PART 3)
Difficulty: Medium
Due to the latest class frenzy over soft toys, I have decided to make this puzzle about them.
As you know, there are a number of soft toys on the shelf at the back of the classroom. There are 6 soft toys there.
Classmate A, let's call her Sherlyn for simplicity, wants the dolphin soft toy. Classmate B, let's call her Chan Ming again for simplicity, also wants the dolphin soft toy. Though, they will do fine with just any soft toy.
Sherlyn and Chan Ming then decide on a way to see who picks what soft toy.
They both close their eyes. The arrangement of the soft toys are mixed around. Then, with their eyes still closed, Sherlyn will first pick a soft toy at random, followed by Chan Ming.
Who has a greater chance of getting the dolphin soft toy, Sherlyn who went first, or Chan Ming who went last?
Yes, it looks quite hard to comprehend, but really the only parts you need to know is the 1st and last paragraph. The rest is just story.
Now for the answer to Puzzle 20, but you don't really need it right? In case you need it, drag your mouse over the empty space below to reveal the answer.
Yes, you should switch doors. Your chances of getting the wrong door halves if you decide to switch doors.
This is known as the Monty Hall Problem.
Initially, when you chose the 3 doors at random, there is 2/3 chance you picked the wrong door (since 2 of the doors are wrong). Hence, you if you switch, you can switch that wrong door for the correct one. Your chance of getting the correct door is 2/3, and the wrong one 1/3, hence the odds that you will end up with the wrong door halves!
Je suis crevé, j'ai trop de boulot.
:|
Glen
![:]](http://s127.photobucket.com/albums/p126/pirana001/?action=view¤t=patrick.gif)
4 Comments:
they are best friends: they will BOTH take the dolphin :P
chan ming has a greater probability :) hahas nice 1 xD im honoured lol
"I'm exhausted. I have too much work." - Google Translate
meeeee.... neh actually Chan Ming :)
uh... cause
1st try: (S) 1/6 chance
2nd try: (C) 1/5 chance
3rd try: (S) 1/4 chance
4th try: (C) 1/3 chance
5th try: (S) 1/2 chance
6th try: (C) SURE GET :)
Post a Comment
Subscribe to Post Comments [Atom]
<< Home