Simple Slot Machines - What If Simulator

Ever wonder what your odds are playing a "fair" slot machine?

"Fair" means the reels are not weighted in any way and each of the possible outcomes has an equal chance of being selected.

The probability of winning is decided by the number and types of paylines defined for the machine. It's a business, remember?

Now enough with guessing. Let's...

The Simple Slot Machines have:

• 3-reels; Each reel has 8 possible outcomes and independent of each other

• 2 paylines

  1. 7-7-7 wins BIG (Currently 300x cost per play)        
  2. Three-of-a-kind of any number (besides 7) wins small (Currently 20x cost per play)
  

• BIG win probability = 0.195%

• Small win probability = 1.367%

Randomly pick a number from 1 - 8:

sample(c(1,2,3,4,5,6,7,8), 1)

## [1] 5

It all depends on number of machines and number of plays, of course.

Simple Slot Machines give the dealer about 11 - 15% profit margin.

Payouts are normally distributed!!? Well, almost. It's slightly right-skewed.

Try it out yourself - now!

Simple Slot Machine - What If Simulator