For this pair of variables, you plan to draw a scatterplot. Which variable would you plot on the x-axis?

Pizza: A = Price ($/unit), B = Sales (kilograms)

A

Question

For this pair of variables, you plan to draw a scatterplot. Which variable would you plot on the x-axis?

Pizza: A = Price ($/unit), B = Sales (kilograms)

A

BlackTom AI · Accepted Answer

The question asks which variable should be placed on the x-axis when creating a scatterplot for the given pair of variables.

First, recall a guiding convention: in a scatterplot, the x-axis typically holds the independent (explanatory) variable—the variable you think is causing or influencing the other—while the y-axis holds the dependent (response) variable.

Here, the pair is A = Price ($/unit) and B = Sales (kilograms). If you are examining how price affects sales, price is the variable you vary or consider as the predictor, and sales is the outcome you measure.

Option A (plotting Price on the x-axis) aligns with this convention, since Price is the independent variable and Sales is the dependent variable.

Why not plot Sales on the x-axis? While you technically could, the conventional choice for exploratory visualization is to place the explanatory variable on the x-axis and the response variable on the y-axis. Plotting Sales on the x-axis would invert the common interpretation and could be confusing when interpreting the relationship, especially for readers who expect price to be the driver.

Additionally, conceptually, scatterplots are used to explore the relationship between two quantitative variables; by placing Price on the x-axis, you can observe how changes in price correspond to changes in sales, and you can assess trends, patterns, or correlations more straightforwardly.

In summary, since the independent variable (Price) is placed on the x-axis and the dependent variable (Sales) on the y-axis, option A is consistent with standard practice for this kind of analysis.

COMM_V 191 201 202 203 204 2024W2 2024W2 COMM 191 Midterm - Friday, March 7, 2025

For this pair of variables, you plan to draw a scatterplot. Which variable would you plot on the x-axis? Pizza: A = Price ($/unit), B = Sales (kilograms) A

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