True or false: regression

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   In y = a + bx, the letter b is the slope.

2. Statement is true

   Yes

   Statement

   A residual is the observed y minus the predicted y.

3. Statement is true

   No

   Statement

   A residuals plot should show a clear pattern.

4. Statement is true

   Yes

   Statement

   Simple linear regression uses one independent variable.

5. Statement is true

   No

   Statement

   The scatter plot should look completely random.

Instructions

Tap True or False for each statement.

Explanation