Chapter 1, Problem 39R

To determine

To identify: The independent variable item, constant variable item and dependent variable item from the given figure.

Explanation of Solution

Introduction:

Independent Variable: These are the factors or conditions that changes or manipulates in the process. It causes the direct effect om dependent variable.

Dependent Variable: These are the factors which can be observe or measure with the help of instrument. If independent variable changes then it has direct effect on dependent variable.

Controlled Variable/constant

Variable: These are a type of variable which manage to keep constant during process or experiment.

The given figure is shown below.

Based on the above definitions the different types of variable is categorized as,

Independent Variable: Cookware (non-stick or stainless steel)

Constant variables: tomatoes, onion, carrot, garlic, and whatever is in the picture excluding cookware.

Dependent variables: Temperature, browning, deep-frying, Food sticking, time taken for sauteing or boiling and time for preparation of food based on different cookware (non-stick and stainless steel)