Questions
COS10022 Lecture 4_Knowledge Check
Multiple choice
Which of the following is TRUE about cross validation?
Options
A.It is used to judge how the trained model performs outside the sample on test data.
B.It is used to find the best predictive model.
C.It is used to avoid over-fitting.
D.It is used to evaluate the predictive performance of a model.
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Step-by-Step Analysis
When evaluating cross-validation, we need to look at what it is and what it accomplishes in model assessment.
Option 1: 'It is used to judge how the trained model performs outside the sample on test data.' This is true in spirit: cross-validation provides an estimate of how a model will generalize to unseen data by ......Login to view full explanationLog in for full answers
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