Correlation
A measure of how two variables move together, ranging from -1 (perfect inverse) to +1 (perfect together). Zero means no linear relationship.
Like umbrella sales and rain — they move together not by coincidence, but because one drives the other.
Why it matters
Understanding which stats move together helps identify compound bets — if a player's points and assists are highly correlated, a points+assists combo bet has less diversification than you'd think.
How DMP uses this
DMP analyzes correlations between stats when evaluating multi-leg parlays and uses correlated stat patterns to improve projection accuracy for related markets.
Common mistake
Assuming correlation means causation, or ignoring that correlated props in a same-game parlay carry hidden risk because they aren't independent.