The document discusses students' scores on a math test. It provides the mean score of 75 and standard deviation of 9. It then uses these statistics to calculate individual students' scores based on their z-scores. Sherry's z-score of -2.7 corresponded to a score of 50.7, Jamie's z-score of -1.7 yielded a score of 59.7, and Ross's high z-score of 7.8 translated to a top score of 93.