Modern slot machines use a random number generator (RNG) to determine outcomes. Not every symbol has the same probability of showing up. Some symbols might show up two or three times more often than pg168 some other symbols, for example. The casino, though, has the details for the slot machine games’ probabilities. They know which slots have a house edge of 5% and which slots have a house edge of 15%. You can’t know, though, unless you clock a large number of spins and extrapolate the data. Even then, you could be way off.
