QMB3302 UF FINAL EXAM QUESTIONS WITH ACCURATE
SOLUTIONS
why is a linear regression a good starting point in a modeling task? -- Answer ✔✔ they
are interpretable
why are pipelines useful? -- Answer ✔✔ help organize the code you used to clean and
treat your data, make it easy to change small things in your model, make it easy to
repeat/replicate steps and run multiple models
basic idea of regression -- Answer ✔✔ we have some X values called features and some
Y value, the variable we are trying to predict
Y is our target vector, and y-hat is an output in our model that is a _____ -- Answer
✔✔ estimate or prediction of y
the first variable in a decision tree (before any of the branches) -- Answer ✔✔ root
one of the problems with decision trees is that they are prone to _____ if you are not
careful or do not set the _____ appropriately -- Answer ✔✔ overfitting, max depth
SOLUTIONS
why is a linear regression a good starting point in a modeling task? -- Answer ✔✔ they
are interpretable
why are pipelines useful? -- Answer ✔✔ help organize the code you used to clean and
treat your data, make it easy to change small things in your model, make it easy to
repeat/replicate steps and run multiple models
basic idea of regression -- Answer ✔✔ we have some X values called features and some
Y value, the variable we are trying to predict
Y is our target vector, and y-hat is an output in our model that is a _____ -- Answer
✔✔ estimate or prediction of y
the first variable in a decision tree (before any of the branches) -- Answer ✔✔ root
one of the problems with decision trees is that they are prone to _____ if you are not
careful or do not set the _____ appropriately -- Answer ✔✔ overfitting, max depth
