Jacksonville is a city in the U.S state of Florida. The settlement in Cowford as earlier known began in the year 1791 and the city received its present name. in 1822 in honor of Andrew Jackson, the first military governor of the Florida Territory. In 1821, Florida became a territory of the United States. The city grew rapidly and was chosen by the voters to consolidate the city and county governments in 1968. Thus Jacksonville was made the largest city in land area in United States. It is now the county seat of Duval County.
First, you have to know a little about statistics. I assume that the grades are drawn from a normal (bell-curve) distribution. These distributions have an average (also called a mean) and a standard deviation (stdev), which measures how wide the distribution spreads out.
SAT/ACT Score Target. The SAT / ACT is coming up in just a year for 10th graders, but using the raw SAT / ACT data mostly from 11th graders to see if a sophomore is doing well isn't correct. Here, Dr. Fred Zhang does a novel analysis on two datasets to find what is considered a good score for the 10th grade.