data:

course: Data mining

* please do NOT send hand written solution.

7. Using the data for age and body fat given in Exercise 2.4, answer the following: (a) Normalize the two attributes based on Z-score normalization. (6) Calculate the correlation coefficient (Pearson's product moment coefficient). Are these two attributes positively or negatively correlated? Compute their covariance. Age 23 23 27 27 39 41 47 49 50 52 54 54 56 57 58 58 60 61 9.5 26.5 7.8 17.8 31.4 25.9 27.4 27.2 31.2 34.6 42.5 28.8 33.4 30.2 34.1 32.9 41.2 35.7 Fat %