Correlation-Do you think there would be a positive correlation between a placement test score and the final grade in this statistics class?What other variables do you think would have a positive correlation with the final grade in this (or any) class?What variables would have a negative correlation with a final grade in a class?Look up a study that finds a correlation between grades and some other variable.Describe the variables, the study, the methods used, whether the correlation is positive or negative, and how this relates to your life.