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Principles of Medical Statistics

Alvan R. Feinstein

Chapter 9

Communication and Display of Univariate Data - all with Video Answers

Educators


Chapter Questions

04:59

Problem 1

Using any published literature at your disposal, find a set of univariate data that has been summarized or displayed in an unsatisfactory way. (If univariate reports are difficult to find, you can use a section of a 2-way table, graph, or chart that involves two variables or two groups, but confine your comments to only one of the variables.) For each variable you choose, describe enough to indicate what is wrong and to justify your opinion. If the problem occurs in a visual display, attach a copy of the display. Please find one such example for a variable that is:
9.1.1. Dimensional
9.1.2. Binary
9.1.3. Nominal
9.1.4. Ordinal

KR
Kimberly Robertson
Numerade Educator
01:27

Problem 2

For each problem that you describe in 9.1.1 through 9.1.4, propose the corresponding improvement or solution in Exercises 9.2.1, 9.2.2, 9.2.3, and 9.2.4.

AG
Ankit Gupta
Numerade Educator
01:02

Problem 3

What ideas do you have about how to improve any of the methods proposed in this chapter for summarizing and/or displaying data for a single variable? Because the need is particularly great for nominal, ordinal, or multi-binary variables, any suggestions about them will be particularly welcome.

Hossam Mohamed
Hossam Mohamed
Numerade Educator