3, 7, 12, 39, 73, 84, 88, 88, 98, 132, 152, 159, 167, 169, 182, 689

Problem 2. (10%) Using the same dataset given in Problem 1, transform the data by (i) z-score normalization, (ii) min-max normalization with [1, u] = (-4, 2) and (iii) decimal scaling