need help with this

Question Help Use the given data to complete parts (a) and (b) below. X y z 2.1 3.9 4 1.4 2.9 3.7 4.6 4.9 (a) Draw a scatter diagram of the data. Choose the correct answer below. O A. O B. O C. OD. 6- Ay 4- O 2- of C Compute the linear correlation coefficient. The linear correlation coefficient for the four pieces of data is (Round to three decimal places as needed.) (b) Draw a scatter diagram of the data with the additional data point (10.4,9.4). Choose the correct answer below. O A. O B. O C. O D. 12- Q 12- 12 8- 8- 8- O 4- of of 8 12 8 12 Compute the linear correlation coefficient with the additional data point. The linear correlation coefficient for the five pieces of data is (Round to three decimal places as needed.) Comment on the effect the additional data point has on the linear correlation coefficient. O A. The additional data point does not affect the linear correlation coefficient. O B. The additional data point weakens the appearence of a linear association between the data points. O C. The additional data point strengthens the appearence of a linear association between the data points