Good at math?

Discussion in 'Miscellaneous' started by JNightwind, Nov 15, 2019.

  1. Hello,

    I need the help of someone that is good at math to help me figure the odds on a gambling machine I want to build.

    So here's the breakdown,

    there are 4 droppers (9 random slots). Each has a 4 out of 9 chance of dropping the correct item and all 4 have the drop the correct item at the same time. So what are the odds that all 4 droppers will drop the winning item?

    If you can give me the equation on how to figure this that would be great in case I want to change up the numbers.

    Thanks
    JNightwind, Nov 15, 2019
    #1
    607 likes this.
  2. Assuming all droppers have the 9 slots filled.
    It's a combination of 4 different odds, so you can multiply them
    4/9 odds x 4/9 odds x 4/9 odds x 4/9 odds
    That'll give you a 256/6561 odd, which is close to 3.9%
    ItsMeMatheus, Nov 15, 2019
    #2
    Jelle68, 607, Burki and 1 other person like this.
  3. Yeah all the droppers are filled and thank you. I knew it was something simple but I suck at math.
    JNightwind, Nov 15, 2019
    #3