A man argues with a police officer as protesters block traffic after a rally for Trayvon Martin in New York City in 2013. Repealing resisting arrest laws is hardly the only reform we need, but it could be an ideal starting point. Mario Tama / Getty Images.
noun, plural scores, score for 11. 1. the record of points or strokes made by the competitors in a game or match. 2. the total points or strokes made by one side, individual, play, game, etc. 3. an act or instance of making or earning a point or points.
DEFINITION of 'Z-Score'. A Z-Score is a statistical measurement of a score's relationship to the mean in a group of scores. A Z-score of 0 means the score is the same as the mean. A Z-score can also be positive or negative, indicating whether it is above or below the mean and by how many standard deviations.