Quick Question: 50% Chance of something

Drak · **Author**

Easy question. Would this be the correct away of getting a "50% chance" of something happening?

Code:

if(!(random(10) < 5))
// stop

RedRobster · *Last edited by RedRobster; 06-20-2010 at 03:37.*

I would do

PHP Code:


			
if( random(2) ) //Random takes the Max-1, then finds a random no. between 0 and that number
{
      //Hi! <-This would happen if it returned 1
} else { 
      //Bye! <- This would happen if it returned 0
}

xPaw · 06-20-2010 , 03:40 Re: Quick Question: 50% Chance of something

Well 50% chance would be random( 100 )
because 5 of 10 would happen more than 50 of 100 and ofcourse 1 of 2, thats what i think

RedRobster · 06-20-2010 , 03:59 Re: Quick Question: 50% Chance of something

Well...technically, it should be a 50/50 chance as this. However, as xPaw pointed out, the more times you run the same test, the higher the likelihood of the outcome being closer to what was expected.

mottzi · 06-20-2010 , 08:47 Re: Quick Question: 50% Chance of something

set a booleen, then do a random which can be 1 or 0.

thats 50% chance

fysiks · 06-20-2010 , 13:27 Re: Quick Question: 50% Chance of something

Quote:

Originally Posted by Drak

Easy question. Would this be the correct away of getting a "50% chance" of something happening?

Code:

if(!(random(10) < 5))
// stop

Yes.

But, I use this for clarity:

PHP Code:


			
#define chance(%1) ( %1 > random(100) ) // %1 = probability



if(chance(50))

{

    // do stuff

}

Drak · 06-20-2010 , 18:21 Re: Quick Question: 50% Chance of something

Sweet. Thanks guy's.