Statistical means relating to statistics, which is the science of collecting, analyzing, and interpreting numerical information to understand patterns and make predictions. When someone mentions statistical evidence, they're talking about conclusions drawn from studying large amounts of data.

If you flip a coin once and it lands on heads, that tells you almost nothing. But if you flip it 1,000 times and get heads 503 times, that statistical result suggests the coin is fair. Scientists use statistical methods to test medicines, pollsters use them to predict elections, and baseball teams use them to evaluate players. A player's statistical performance might show they get a hit in 30% of their at-bats.

Something that's statistically significant means the pattern is strong enough that it's probably not just random chance. If students who eat breakfast score better on tests, researchers would check whether that difference is statistically significant or just coincidence.

Today the field extends far beyond governments. When you hear that something is statistically unlikely or statistically supported, someone has done the mathematical work to move beyond guessing and toward genuine understanding of what the numbers reveal.