Blatchley Chapter 03 Posttest

. Each data point plotted on a frequency polygon represents the _____________ of a(n) ______________.

number of occurrences; observation

average; observation

category membership; observation

number of occurrences; relationship

. In a time-series graph, the x-axis generally represents _________________, and the y-axis generally represents _____________________.

discrete variables; contiguous variables

independent variable; extraneous variables

time; dependent variable

dependent variable; time

.

Using the graph below, what type of visualization is it, and what do the bars represent?

Click on the link for Question 3 Graph

This is a bar chart. The bars represent how many individuals were in each condition.

This is a bar chart. The bars represent how severe individuals in each condition felt their symptoms.

This is a histogram. The bars represent how many individuals were in each condition.

This is a histogram. The bars represent changes in symptom severity.

.

A marketing researcher for a concert hall is looking at the population's general preferences for music. From the data he has, he wants to present the proportion of individuals who like each genre. Which of the following is not an appropriate way to represent the data, visually?

Pie chart

Bar Chart

Scatter plot

All of the above are appropriate

. Unlike the stem-and-leaf plot, most other forms of data visualization methods do not allow the viewer to obtain which of the following information?

individual datum

whether the data are on an interval or ratio scale

potential relationships between variables

frequency of observations

Blatchley Chapter 03 Posttest

Quiz Content