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 wins can be. In a short session, results can swing sharply, so you may lose more—or win more—than the averages suggest.