1. Predicting the number of juvenile violent crime arrests when 25% of the children are not in school or in the labor force is called
A. contingency.
B. extrapolation.
C. causation.
D. correlation.
2. The correlation between rate and math SAT score is r = -0.85. If instead of plotting these variables for each of the 50 states and the District of Columbia, we plotted the values of these variables for each county in the United States, we would expect the value of the correlation r to be
A. exactly the same.
B. smaller in magnitude (closer to zero).
C. -0.85. The magnitude is the same, but the sign should change.
D. larger in magnitude (closer to -1), since there are many more counties than states.