In the context of visualizing data, how is a stem-and-leaf plot similar to a dot plot?

• A. Both are used exclusively for qualitative ($\mathrm{categorical}$) data.
• B. Both display individual data values, allowing you to see the distribution and frequency of each value.
• C. Both group data into intervals, losing information about individual data points.
• D. Both require the data to be normally distributed.

Answer: (B)

Verified step by step guidance

1. Understand that both stem-and-leaf plots and dot plots are graphical methods used to display data visually.
2. Recognize that both plots show individual data values rather than grouping data into intervals or categories.
3. Note that by displaying each data point, both plots allow you to observe the distribution and frequency of the data clearly.
4. Understand that neither plot is limited to qualitative (categorical) data; they are typically used for quantitative data.
5. Conclude that the key similarity is that both plots preserve individual data points, helping to visualize the shape and spread of the data.