You have collected data on the monthly seasonally adjusted civilian unemployment rate for the United States from 1998 to 2007. Which of the following is the best for presenting the data?
A) a stem-and-leaf display
B) a side-by-side bar chart
C) a contingency table
D) a time-series plot

Question

Quizplus · Accepted Answer

The best choice for presenting time-related data is a time-series plot, which is a graph that displays data points at consecutive intervals over a certain time period. This is ideal for displaying the monthly unemployment rates from 1998 to 2007, which is a time-based data set. A stem-and-leaf display is not suitable because it is more appropriate for smaller data sets. A side-by-side bar chart would be useful for comparing two or more data sets, which is not applicable in this case as there is only one set of unemployment rates. A contingency table would be useful for displaying the counts or proportions of observations in two or more categories, which is not the case in this scenario.

You Have Collected Data on the Monthly Seasonally Adjusted Civilian