Scattergrams show:

Scattergrams show:

• A. They show differences between groups
• B. They cannot place either variable on X or Y axis
• C. They require categorical data
• D. They show associations between co-variables

Answer: (D)

Scattergrams plot pairs of data points with one variable on the x-axis and the other on the y-axis to show how two quantitative variables relate to each other. The main idea is to identify associations: if the points form an upward pattern, there’s a positive relationship; a downward pattern indicates a negative relationship; a cloud with no clear pattern suggests little or no association. This is why scattergrams are best described as displaying associations between co-variables. The other statements don’t fit as well. You can swap which variable sits on which axis without changing the underlying relationship, so it’s not accurate to say scattergrams can’t place either variable on either axis. They don’t require categorical data—the core use is to examine how two continuous variables relate, though groups can be indicated by color or shape if needed. And they’re not primarily used to show differences between groups; that’s more the domain of bar charts or box plots.

Scattergrams plot pairs of data points with one variable on the x-axis and the other on the y-axis to show how two quantitative variables relate to each other. The main idea is to identify associations: if the points form an upward pattern, there’s a positive relationship; a downward pattern indicates a negative relationship; a cloud with no clear pattern suggests little or no association. This is why scattergrams are best described as displaying associations between co-variables.

The other statements don’t fit as well. You can swap which variable sits on which axis without changing the underlying relationship, so it’s not accurate to say scattergrams can’t place either variable on either axis. They don’t require categorical data—the core use is to examine how two continuous variables relate, though groups can be indicated by color or shape if needed. And they’re not primarily used to show differences between groups; that’s more the domain of bar charts or box plots.