In a study of Math SAT scores, the Educational Testing Service computed the average scores on the exam for each of the 50 states and the District of Columbia, as well as the percentage of high-school seniors that took the exam in each state and in D.C.The correlation between these two variables (average scores and percentage) was -0.84.

(a)TrueorFalse,and explain your choice briefly:

"According to this data, test scores in the states with lower participation rates in the SAT exam tended to be higher than in states with higher participation rates."

(b) That year, the average Math SAT score in California was 521, and in Arizona, the average was 611.TrueorFalse,and explain your choice briefly:

"These data show that schools in Arizona did a better job preparing students for the SAT exam than schools in California."