FRQ 9 Why Do Some Schools Do Better Than Others? A random sample of 11 high schools was selected from the state of Michigan and data was recorded for two variables. In Michigan, all high school Juniors are required to take the SAT. The variable on the y-axis is "Average SAT math score" and the Variable on the x-axis is percent of students receiving free and reduced lunch.

600 580 560 540 520 Average SAT math score 500 480 460 440 420 400 10 20 30 40 50 60 70 80 90 77777