Instruction: Explain the significance of the coefficients, the role of the logistic function, and how to evaluate model performance.
Context: This question assesses the candidate's understanding of logistic regression, including the mathematical foundation and its application in classification problems.
Official answer available
Preview the opening of the answer, then unlock the full walkthrough.
The way I'd approach it in an interview is this: I interpret logistic regression in layers. First I check whether the model is even well specified: feature scaling, leakage, multicollinearity, class balance, and calibration all affect whether the coefficients are trustworthy. After that, I look...