RTP is a long-run average; house edge is the casino’s expected share: 96% RTP =...

https://enyenimp3indir.net/what-does-expected-value-mean-in-casino-games-in-plain-english/

RTP is a long-run average; house edge is the casino’s expected share: 96% RTP = 4% house edge. Volatility describes how uneven results can be. In a short session, wins or losses can differ sharply from the average—RTP is no guarantee.