hard20 pts · first answer countsmodel-monitoringdata-drift

Mean and std did not move

A feature’s mean and standard deviation are the same as in training, but the model is struggling. The histogram is now bimodal. What is the lesson?

A.If the mean and std match, there cannot be any driftB.Summary stats can hide shape changes; compare distributionsC.A bimodal feature cannot change what a model predictsD.Only the median of a feature matters for drift checks

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Mean and std did not move

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