Can you please explain the last part for me please

Final Exam - Page 9 of 9 Form E 8. (11 points) As fallen trees lie on the forest floor they slowly decay. Will the amount of light present have an impact on the rate of decay? In the following table x is a random variable representing the remaining percentage of total mass of a log after it was exposed to the elements for three weeks while y represents the number of hours the log went without direct sunlight each day. * 56 46 y 22.8 21.9 19.1 19 .74 92 .95 (a) (7 points) Plot a scatter diagram of the data. Remember to label your axes appropriately and choose a 17.8 consistent scale. (b) (2 points) Based on a scatter diagram, would you estimate the correlation coefficient to be positive, close to zero, or negative? Please circle one of the following choices: A. Positive B. Close to zero C. Negative (c) (2 points) Interpret your results from parts (a) and (b)