(Chapter 09] k-Nearest Neighbors for Prediction You used the k-Nearest Neighbors method to predict the average balance in a customer's bank account. You set k = 1 to 20 and XL Miner reported the best k = 6. The table below gives the 6 nearest neighbors in the training set for a new customer and the average balance in the bank account for each neighbor. 6 Neighbor 1 2. 3 4 5 Average Balance 2,850 2,210 3,000 3,208 ($) 2,360 Answer the following questions based on the above information. 1,690 Question 37 (3 points) For the new customer, the predicted average balance - A Round the final answer (if it is not an integer) to the nearest integer. Question 38 (3 points) The best kachieves the smallest on the validation set. A/ Round the final answer (if it is not an integer) to the nearest Integer. Question 38 (3 points) The best k achieves the smallest on the validation set. O root mean squared error class 1 error rate class:0 error rate overall error rate