BIDA 630 DATA ANALYTICS QUESTIONS AND CORRECT ANSWERS | LATEST UPDATE
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Module
BIDA 630
Institution
BIDA 630
Identify whether the task required is supervised or unsupervised learning: Deciding whether
to issue a loan to an applicant based on demographic and financial data (with reference to a
database of similar data on prior customers).
- Supervised
- Unsupervised
-:- Supervised
This is supervis...
BIDA 630 DATA ANALYTICS
QUESTIONS AND CORRECT ANSWERS |
LATEST UPDATE
Identify whether the task required is supervised or unsupervised learning: Deciding whether
to issue a loan to an applicant based on demographic and financial data (with reference to a
database of similar data on prior customers).
- Supervised
- Unsupervised
✓ -:- Supervised
This is supervised learning, because the database includes whether the loan was approved or
not.
Identify whether the task required is supervised or unsupervised learning: Printing of custom
discount coupons at the conclusion of a grocery store checkout based on what you just
_____________ of data is used to assess the performance of each supervised learning
model so that we can compare models and pick the best one.
- The test partition
- The validation partition
✓ -:- Validation
The validation partition is used to assess the performance of each supervised learning model
so that we can compare models and pick the best one. In some algorithms (e.g.,
classification and regression trees, k-nearest neighbors) the validation partition may be used
in automated fashion to tune and improve the model. This means that the validation data
are actually used to help build the model.
When a model is fit to training data, zero error with those data is not necessarily good. This
special case is called ______.
- Overestimating
- Good fit
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