Which statement is true about a dot plot?

• A. A dot plot is primarily used for displaying chemical formulas.
• B. A dot plot is best for showing the relationship between two categorical variables.
• C. A dot plot is typically used to display quantitative data.
• D. A dot plot cannot show the distribution of data values.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand what a dot plot is. A dot plot is a simple graphical display used to show the frequency of individual data points in a dataset, typically for quantitative (numerical) data.
2. Step 2: Recognize that dot plots are not used for chemical formulas, as chemical formulas represent molecular compositions, not data distributions.
3. Step 3: Know that dot plots are not designed to show relationships between two categorical variables; instead, they display the distribution of a single quantitative variable.
4. Step 4: Recall that dot plots effectively show the distribution of data values by stacking dots above each value on a number line, making it easy to see frequency and spread.
5. Step 5: Conclude that the true statement is: 'A dot plot is typically used to display quantitative data,' because it visually represents the distribution and frequency of numerical data points.