Which statement is true about a dot plot?

A bar chart displays the number of students in each major at a university. What type of data distribution is being visualized?

Which of the following is a true statement about a $boxplot$?

Which of the following best describes how a Pareto chart differs from a standard vertical bar graph when visualizing data?

Why is it sometimes necessary to include trend lines on line graphs when visualizing quantitative data?

What is an advantage of using a stem-and-leaf plot instead of a histogram?

For which of the following data sets will a $\mathrm{pie} \mathrm{chart}$ be most useful?

$\text{Letter grades on a test are an example of which type of data?}$