_________ are used when you want to visually examine the relationship between two quantitative variables
Explanation
The correct answer is D. scatter plots.
- Scatter plots: These are used to visually examine the relationship between two quantitative variables. Each point on the plot represents a pair of values, making it easy to see if there's a correlation or pattern between the variables.
- Bar graphs: These are used to compare quantities of different categories, not for examining relationships between two quantitative variables.
- Pie graphs: These are used to show the proportion of parts to a whole in categorical data, not for examining relationships between quantitative variables.
- Line graphs: These are typically used to show trends over time for one quantitative variable rather than examining the relationship between two quantitative variables.
