Stats Modeling the World, 4th Edition

Published by Pearson
ISBN 10: 0133151549
ISBN 13: 978-0-13315-154-1

Chapter 2 - Displaying and Describing Categorical Data - Exercises - Page 40: 35


From the given data, there is no evidence that Prozac is helpful for treating anorexia. The relapse rate was nearly identical: 28.6% for Prozac treated patients, compared to 27.3% for placebo treated patients.

Work Step by Step

In order to calculate a percentage, first divide the number in the given category by the total number. Then, express this fraction in decimal form. Finally, multiply by 100% to express this number as a percentage.
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