The mean is the class average and the standard deviation measures how wide the grade distribution spreads out. A z-score of 0 means you're at the exact class average. A z-score of 1 means you are one standard deviation above the class average; that's about the 84% percentile.
Freebase(0.00 / 0 votes)Rate this definition: Dyer. Dyer is a town in St. John Township, Lake County, Indiana, United States. The population was 16,390 at the 2010 census. This bedroom community lies in the Chicago Metropolitan Area. Dyer placed 97th on the 100 Best Places to Live in the US by CNN and Money Magazine in 2005.
A more limited, but at the same time an equally expressive, definition was given by Lord Dyer, that âa claim is a challenge by a man of the propriety or ownership of a thing, which he has not in possession, but which is wrongfully detained from him.â Prigg v. Pennsylvania, 16 Pet. 615, 10 L. Ed.