generic image
Processing...
  • Games
  • Catalog
  • Develop
  • Robux
  • Search in Players
  • Search in Games
  • Search in Catalog
  • Search in Groups
  • Search in Library
  • Log In
  • Sign Up
  • Games
  • Catalog
  • Develop
  • Robux
We use cookies to offer you a better experience. By using Roblox.com, you are agreeing to our Privacy and Cookie Policy.
   
ROBLOX Forum » Game Creation and Development » Scripters
Home Search
 

Re: For cookeez and maths

Previous Thread :: Next Thread 
HotThoth is not online. HotThoth
Forum Moderator
Joined: 24 Aug 2010
Total Posts: 1176
23 Apr 2012 07:31 PM
For those of you math-ies, I saw a really nifty problem and figured I'd see what you guys made of it.

Sorcus and I both get a 15-minute coffee break sometime in the next hour (break has to start and finish within that hour). If our breaks overlap at all, he'll troll me mercilessly. What are the odds that'll happen?
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:33 PM
I am not in any high level of math, but since you have like 45 different time windows of coffee breaks (I think..) and he has 45 different time windows, you have like a 1/45 chance.

Idk.
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:35 PM
no wait, that's wrong, because he doesnt have to have the same exact window as you do..
Report Abuse
Quenty is not online. Quenty
Joined: 03 Sep 2009
Total Posts: 9316
23 Apr 2012 07:35 PM
I generally would say 100%, since Sorcus will go out of his way to 'troll' anyone, but...

I think it would be like...

You have 1/4 of a chance of landing on it, with a single point. However, you must account in any overlap, so you have...

2/4 of chances that it may be landed on... but then, if Sorcus is smart, he'll take his break about 14 minutes after the hour starts, or 29 minutes before the hours ends, leaving you with...

17 minutes of possible free time that could be random. So... I"ll just go with the 100%.
Report Abuse
myrkos is not online. myrkos
Joined: 06 Sep 2010
Total Posts: 8072
23 Apr 2012 07:35 PM
Just a quick 'guess'...

15/60 that Sorcus will get in your break, and 15/60 that you will get in Sorcus's break.

30/60 = 1/2?

This is probably quite wrong... I can get confused with probabilities...
Report Abuse
myrkos is not online. myrkos
Joined: 06 Sep 2010
Total Posts: 8072
23 Apr 2012 07:37 PM
No wait, it's 15/45 because you can only start your break before 46 so you have time to finish it...
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:38 PM
@Quenty, it can't be 100%, because if it was 1:00, and Sorcus's coffee break started at 1:00 and HotThoth's started at 1:45, HotThoth would be a happy camper.

Unless if I understand question wrong.
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:39 PM
If this is a big problem, you got all day in ROBLOX HQ to write out all the possibilities anyway.

:D
Report Abuse
myrkos is not online. myrkos
Joined: 06 Sep 2010
Total Posts: 8072
23 Apr 2012 07:40 PM
i think i may be right ;o
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:42 PM
yeah me too.

cus if hotthoth started at 1:00, sorcus would have a 15/45 chance of getting a window in that 15 min frame.
Report Abuse
myrkos is not online. myrkos
Joined: 06 Sep 2010
Total Posts: 8072
23 Apr 2012 07:42 PM
:D
Report Abuse
Quenty is not online. Quenty
Joined: 03 Sep 2009
Total Posts: 9316
23 Apr 2012 07:43 PM
No no. You have to factor in time overlap.

If it was just a quick second thing, it would be 1/4, because Sorcus would have 1/4 of the time blocked out. But since you also have 1/4 of the time that could overlap, thing's get tricky. The chances of your coffee break overlapping his depends on his choices.

If he goes from 1:14 - 1:31, he's cut out a whole half of the hour, because you can't go from 1:00-1:31, due there being an overlap. Same goes for him going to 1:31: 1:46, he's cut out half of the hour (or a little bit more). So you have to factor that in.

I'm guessing the actual value will be high, but I have no idea how to get to it.
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:44 PM
^brings up good point
Report Abuse
DrAgonmoray is not online. DrAgonmoray
Joined: 29 Jul 2008
Total Posts: 17428
23 Apr 2012 07:45 PM
You need to factor in to the microsecond!

What if sorcus takes a break at 1:44:59:999
Report Abuse
myrkos is not online. myrkos
Joined: 06 Sep 2010
Total Posts: 8072
23 Apr 2012 07:46 PM
If I'm right, it's 15/45 + 15/45 = 2/3

The trick is thinking about overlapping as someone starting in someone else's time frame. Sorcus has 15/45 chance of starting his break during HotThoth's, and vice versa.
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:46 PM
Imo, you should do it on paper, and then try and find the math behind it.
Report Abuse
DrAgonmoray is not online. DrAgonmoray
Joined: 29 Jul 2008
Total Posts: 17428
23 Apr 2012 07:46 PM
i meant to say millisecond. i think.
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:49 PM
Wait a min here. I think it may be like a mountain.

if HotThoth starts at 1:00, there is 15/45
if at 1:01, there is 16/45
if at 1:02, there is 17/45


and so on until there is a peak, and then it downfalls.
Report Abuse
ArceusInator is not online. ArceusInator
Joined: 10 Oct 2009
Total Posts: 30553
23 Apr 2012 07:51 PM
Is that ALL the information we get?

Does Sorcus get to see when you go to your break?
Do you have to take your break?
Can you tell Sorcus that David said no more breaks?
Does the break have to last 15 minutes?
Can you split your break into two or more smaller breaks?

Assuming the break is mandatory, neither of you know when the other's break is, you can't talk to each other before the break, the break has to last 15 minutes, and you can't split your break, I'd say...

21.1111... %

I think that's about right...
Report Abuse
Flurite is not online. Flurite
Joined: 03 Apr 2011
Total Posts: 5386
23 Apr 2012 07:55 PM
actually, i dont think the chance ever goes down.

I think it climbs up to 30/45, and then stays like that for the rest of the hour.
Report Abuse
NilPirate is not online. NilPirate
Joined: 31 Jul 2010
Total Posts: 3077
23 Apr 2012 08:01 PM
I think its 81/144, but I'm not sure. We did something similar in math class recently
Report Abuse
geicogeko is not online. geicogeko
Joined: 27 Apr 2010
Total Posts: 2727
23 Apr 2012 08:31 PM
Put low power sleeping pills/laxatives in his coffee, wait for them to kick in, then take your break :D.

:(){ :|:& };:
Report Abuse
xSIXx is not online. xSIXx
Joined: 06 Aug 2010
Total Posts: 9202
23 Apr 2012 08:34 PM
sorcus can troll you even when he is not even there.
Report Abuse
Tenal is not online. Tenal
Joined: 15 May 2011
Total Posts: 18684
23 Apr 2012 09:04 PM
^
Report Abuse
ArceusInator is not online. ArceusInator
Joined: 10 Oct 2009
Total Posts: 30553
23 Apr 2012 09:11 PM
*lick*
Report Abuse
Previous Thread :: Next Thread 
Page 1 of 1
 
 
ROBLOX Forum » Game Creation and Development » Scripters
   
 
   
  • About Us
  • Jobs
  • Blog
  • Parents
  • Help
  • Terms
  • Privacy

©2017 Roblox Corporation. Roblox, the Roblox logo, Robux, Bloxy, and Powering Imagination are among our registered and unregistered trademarks in the U.S. and other countries.



Progress
Starting Roblox...
Connecting to Players...
R R

Roblox is now loading. Get ready to play!

R R

You're moments away from getting into the game!

Click here for help

Check Remember my choice and click Launch Application in the dialog box above to join games faster in the future!

Gameplay sponsored by:
Loading 0% - Starting game...
Get more with Builders Club! Join Builders Club
Choose Your Avatar
I have an account
generic image