A scatterplot shows a curved relationship between 2 variables. What methods can be used to analyze the relationship between these variables?
I. Fit an exponential or quadratic function
II. Summarize the strength of the association by using correlation and R²
III. Transform one or both of the variables by using square root, logarithm, or reciprocal functions
Select one:
A. I and III only
B. III only
C. I only
D. II only
E. I, II, and III