An analyst reports: "the fitted line has an R² of 0.83." In CRISP-DM terms this statement is part of:
An analyst reports: "the fitted line has an R² of 0.83." In CRISP-DM terms this statement is part of:
Answer
Modelling — assess model, a judgement of technical fit
Options - A. Modelling — assess model, a judgement of technical fit - B. Evaluation — evaluate results, a judgement of business fit - C. Data understanding — explore data, since R² describes the data - D. Deployment — the final report, since it is a reported number Why - A. Correct — R² says how well the line fits the points. That is technical quality, which is the last task of modelling. - B. Evaluation asks whether the result meets the business criterion and would change the decision. R² says nothing about either. - C. R² is a property of a fitted model, not of the raw data. Exploration comes before any model exists. - D. A number is not deployment because it is reported; deployment is the hand-over of the answer with a plan.