It's a data mining question. I dont quite get it.

Based on the entire data set, calculate mean and standard deviation for x1 and x2. Use z-scores to standardize the values, and then compute the Euclidean distance between customers 3 & 4 Customer x1 x2 1 977 2 277 3 T5 4 974 5 473 6 272 7 377 8 Z3 9 979 10 378 Based on the entire data set, find the minimum and maximum values for x1 and x2. Use min-max transformation to normalize the values, and then compute the Euclidean distance between customers 7 & 8. Customer X1 X2 1 9 7 2 2 7 3 1 5 4 9 4 5 4 3 6 2 2 7 3 7 8 6 3 9 9 10 3 8