Which of the following is true of a training data set?
A) They are primarily used to fine-tune models.
B) They provide the most realistic estimate for a model's performance.
C) They are used to build models where the data is unknown.
D) They have known outcomes.

Question

Quizplus · Accepted Answer

A training data set is a set of data used to build and train a model. It typically includes inputs and corresponding known outcomes, allowing the model to learn from the data and make predictions on new, unseen data. Therefore, option D is the correct answer. Options A, B and C are incorrect as they do not accurately describe the main purpose of a training data set.

Which of the Following Is True of a Training Data