Choose the best answer. The _____ set is used to build the model, and the ________ set is used to measure the performance of a model. Question 6 options: a) Training, training b) Test, test c) Test, training d) Training and test, Training and test e) Training, testA symbolic description of the model to be fit is called_____. Question 7 options: a) leaf node b) Formula c) Subset d) Equation e) data frame