House Edge — Understanding the Numbers
Jacks or Better is known for having a relatively low house edge among casino games. With a full pay table (the 9/6 pay table — 9:1 on Full House and 6:1 on Flush) and basic strategy, the house edge stays very low — lower than many slots or table games.
However, this rate can rise significantly depending on the pay table. An "8/5" or "7/5" pay table (8:1 or 7:1 on Full House) can mean the house advantage more than doubles. So read the top two lines of the pay table carefully before you play.
To understand the concept of house edge, keep in mind: it is a theoretical long-term average — it does not determine who wins any specific round. Both luck and strategy play a role in every round. Learning about responsible gaming will make these points clearer.