# (Solved): CIS 375 Quiz 3 | Score for this quiz: 5 out of 5 | This attempt took 19 minutes....

**CIS 375 Quiz 3
Score for this quiz: 5 out of 5
This attempt took 19 minutes.**

**Question 1**

0.5 / 0.5 pts

A linear discriminant model partitions the instance space into similar regions by perpendicular decision boundaries - horizontal and vertical decision boundaries.

- True
- False

**Question 2**

0.5 / 0.5 pts

A key distinct feature of linear discriminant approaches from decision trees is that it takes multiple attributes into account in the form of a mathematical function of attributes.

- True
- False

**Question 3**

1 / 1 pts

Loss functions are different ways of measuring the amount of classification error our model has in the training data.

- True
- False

**Question 4**

1 / 1 pts

Logistic regression is estimating the probability of class membership (a numeric quantity) over a categorical class.

- True
- False

**Question 5**

1 / 1 pts

A learning curve shows the generalization performance plotted against the amount of training data used.

- True
- False

**Question 6**

1 / 1 pts

Learning curves ...

- are used to select an optimal complexity parameter.
- plot true positive rate vs. false positive rate.
- can illustrate whether obtaining more data would be a good investment.
- are shown for a fixed amount of training data.