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The k-means algorithm is an example of which type of machine learning task?

A decision tree in machine learning classifies data by:

The bias-variance tradeoff in machine learning describes the tension between:

In reinforcement learning, an agent learns by:

In machine learning, unsupervised learning works with data that is:

Overfitting in a machine learning model occurs when the model:

In machine learning, supervised learning is characterized by training on data that is: