Explain why in looking for a variable that explains rank, you will be hoping for a negative correlation. Better roller coasters correspond to greater lower values of Rank, and one would expect the best, most-liked roller coasters to have higher lower values for variables like Speed and Duration, so if one of these other variables explains rank, one would expect a negative positive association. Since the sign of a correlation coefficient indicates the direction strength of association, if one of these other variables explains rank, one would expect a negative positive correlation