假设使用的是 k-NN 算法。如图所示，你有标签为 X、Y 和 Z 的训练数据集。 Assume k-NN algorithm is used. As shown in the figure, you are given the training dataset labeled with X, Y, and Z.  1. 当 k=4 时，预测的标签为 When k = 4, the predicted label is: [選擇] X Y Z 2. 当 k=7 时，预测的标签为 When k = 7, the predicted label is: [選擇] X Y Z 3. 当 k=10 时，预测的标签为 When k = 10, the predicted label is: [選擇] X Y Z多重下拉选择题

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