You have collected data on the number of complaints for six different brands of automobiles sold in Australia in 2006 and in 2011.Which of the following is the best for presenting the data?
A)A time-series plot.
B)A stem-and-leaf display.
C)A contingency table.
D)A side-by-side bar chart.

Question

Quizplus · Accepted Answer

A side-by-side bar chart would be the best choice for presenting the data as it allows for easy comparison of the number of complaints for each brand between the two years. A time-series plot would also work, but it may not be as effective in showing the differences between the brands. A stem-and-leaf display and a contingency table are more suitable for presenting categorical data, whereas the number of complaints is quantitative.

You Have Collected Data on the Number of Complaints for Six