Data on the amount of money made in a year by 1000 families in a small town were collected. You want to know if the money made is normally distributed. Which of the following would you use?
A) time-series plot
B) bar chart
C) scatter plot
D) box-and-whisker plot

Question

Quizplus · Accepted Answer

A box-and-whisker plot is a useful graphical tool to determine the distribution of a dataset. It can show the median, quartiles, outliers, and skewness of the data. If the plot is approximately symmetrical and bell-shaped, it suggests that the data is normally distributed. A time-series plot, bar chart, or scatter plot is not appropriate for this type of analysis.

Data on the Amount of Money Made in a Year