As shown in the attribute space below, there are 20 examples of positive (+) class and 5 examples of negative (-) class. Answer the following questions by accepting that there is no scale difference between X and Y attributes.

a) For which class is the test sample (o) assigned to K = 1 nearest neighbor? Explain briefly why. b) To which class is K = 3 nearest neighbor test sample (o) assigned? c) For K = 5 nearest neighbor, which class is the test sample (o) assigned to? d) Choosing a larger value of K seems like a good idea as more examples are looked at. Could it be a drawback to choose K = 15 for these examples? Briefly explain why.

+ + + + + Test Omegi + + +