In a chart showing the population of various countries the label United States would be an example of an independent variable true or false

The correct answer is TRUE.

The dependent variable in the chart is the population (Y). On the other hand, the value that Y will take depends on different values of the qualitative variable country (X). In a qualitative variable like X, instead of values, there are different labels. Under the label United States, there will be a corresponding specific value of X. Y is the dependent variable while X is the independent one that defines the first.

X (country) is an independent variable.