Chapter 1, Problem 1E

To determine

To identify: which variable is categorical or quantitative.

Answer to Problem 1E

Categorical Variable:

Type of wood,Types of water repellent and Paint color

Quantitative Variable:

Paint thickness and Weathering time

Explanation of Solution

Given:

Type of wood (yellow poplar, pine, cedar);

Type of water repellent (solvent-based, water-based);

Paint thickness (millimeters);

Paint color (white, gray, light blue);

Weathering time (months).

From the given information we have the following:

1. Type of wood (Yellow popular, pine, cedar): Categorical Variable

2. Types of water repellent (solvent-based, water-based): Categorical Variable

3. Paint thickness (millimeters): Quantitative Variable

4. Paint color (White, gray, light blue): Categorical Variable

5. Weathering time (months): Quantitative Variable