Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 1 - The Nature of Probability and Statistics - 1-4 Experimental Design - Exercises - Page 24: 19

Answer

Minutes exercising is the independent variable. Catching a cold is the dependent variable.

Work Step by Step

Researchers want to see how the independent variable affects the dependent variable. Here, they want to see how length of time spent exercising affects chances of catching a cold.
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