13. What does a correlation coefficient of r = - 0.97 generally imply about the graph of a data set?
A) The slope is positive, and a linear model is a good fit for the data.
B) The slope is negative, and a linear model is a good fit for the data.
C) The slope is positive, and a linear model is NOT a good fit for the data.
D) The slope is negative, and a linear model is NOT a good fit for the data.