Introduction to machine learning · Question 42 of 60

A tester reads in an ML project report: "Regression completed, error 3.2 years". How is this most likely to be understood?

1 answer is correct. Hard

1. A As clustering in which the data was divided into 3.2 groups on average
2. B As classification in which 3.2% of the cases were misclassified
3. C As a regression test after a code change in which 3.2 defects per module were found
4. D As ML regression, i.e. predicting a continuous value with an average error of 3.2 years