CFA Practice Question

There are 155 practice questions for this study session.

CFA Practice Question

In the k-fold cross-validation technique, the data are shuffled randomly and then divided into k equal sub-samples, ______

A. with all samples used as training samples to be learned from.
B. with k-1 samples used as training samples and the kth one used as a validation sample.
C. with k-2 samples used as training samples, one used as a validation sample and one used as a test sample.
Correct Answer: B

Note the data already excludes test sample.

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