Jimmy recently started a new job and has been tracking the hours he works and how much he earns. He also calculated the line of best fit for his data. Which of the following statements is the most correct?
a) The slope of the line of best fit represents Jimmy's hourly wage.
b) The y-intercept of the line of best fit represents Jimmy's starting salary.
c) The line of best fit perfectly predicts Jimmy's earnings.
d) The correlation coefficient of Jimmy's data is 1.