Expected value (EV) explained
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What EV is, why it is negative in casinos and how to use it.
Safety · By Denis Satoshi
What EV is, why it is negative in casinos and how to use it.
Expected value (EV) is the average result of a bet over the long run. In casinos EV is always negative because of the house edge: on average you lose the built-in percentage on each bet. EV does not predict a single outcome but explains why a balance declines over long play. Understanding EV helps you soberly assess "strategies": if a game has negative EV, no betting sequence makes it profitable.
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FAQ — Expected value (EV) explained
In short, expected value (EV) explained?
What EV is, why it is negative in casinos and how to use it.
Does this affect my odds?
Remember: the casino has a mathematical edge over time, and provably-fair results are random. Any strategy manages risk but does not change expected value. 18+.
18+ · Geo-restrictions apply. Stake.com is not available in all jurisdictions.