Question: 3. On the graph below, we visualize the validation error of K-Nearest Neighbors model. Error rate 50 9 30 20 10 10 K-Value Validation

3. On the graph below, we visualize the validation error of K-Nearest Neighbors model. Error rate 50 9 30 20 10 10 K-Value Validation error a. (10 pts) What is the best value of K would you pick if your goal is to output the best accuracy? b. (10 pts) In one sentence explain your choice.

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