Question: (Machine Learning) - What is an indicator variable, and how can regression be used for classification? - What is the equation for the sigmoid function?

(Machine Learning)

- What is an indicator variable, and how can regression be used for classification?

- What is the equation for the sigmoid function? Calculate the values of sigmoid(0), sigmoid(10), sigmoid(-10). You can use Python.

- gradient has a few definitions. Give one that seems appropriate for machine learning.

Thanks!!

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