Incorrect Question 3 0 / 10 pts Question 3: A product recommendation system is an example of 1) Regression 2) Classification 3) Clustering 2) o 3) 01) and 3) 1), 2) and 3) Incorrect Question 6 0 / 10 pts Question 6: Consider the matrix X defined below where rows represent observations, and columns represent predictors. Suppose we use the Euclidean distance to compute the distance matrix D, also defined below. 1 3 2 X = 2 - 1 do 4 1 2 d11 D= |d21 d31 d12 d13 d22 d23 d32 033 What is the value of the entry d12? (Please use 2 decimal places.) 2.24 Incorrect Question 7 0 / 10 pts Question 7: Consider the matrix X defined below where rows represent observations, and columns represent predictors. Suppose we use the Minkowski distance with m = 3 to compute the distance matrix D, also defined below. 3 5 4 X = = -6 -1 -3 5 4 6 d11 D= |d21 = d12 d13 d22 d23 d32d33 d31 What is the value of the entry d23? (Please use 2 decimal places) 15.06