Environmental researchers have collected rain acidity data for several decades. They want to see if there is any evidence that attempts to reduce industrial pollution have produced a trend toward less acidic rainfall. They should display their data in a(n)…
A) contingency table
B) histogram
C) bar graph
D) timeplot
E) boxplot

Question

Quizplus · Accepted Answer

A timeplot is the best choice as it allows for the visualization of any trends over time, as well as any potential seasonality or cyclical patterns in the data. The other options (contingency table, histogram, bar graph, and boxplot) are not appropriate for displaying trends over time.

Environmental Researchers Have Collected Rain Acidity Data for Several Decades