RTP is a long-run average, not a session forecast: 96% RTP means a 4% house...

https://paxtonsexpertop-ed.zenbloomer.com/posts/variance-vs-volatility-in-slots-are-they-the-same-thing

RTP is a long-run average, not a session forecast: 96% RTP means a 4% house edge. Volatility describes how uneven results can be, from frequent small wins to rarer larger swings. Short sessions can differ sharply from the average, in either direction.