When you play online slots, knowing the RTP tells you the average return to...

https://www.social-bookmarkings.win/when-you-dig-into-online-game-mechanics-rtp-and-volatility-tell-you-how-often

When you play online slots, knowing the RTP tells you the average return to players over time, usually around 95% or higher. Volatility shows how often and how big wins can be—high volatility means fewer but bigger payouts