A prime example of a confounding variable is the fact that baby-name popularity has fluctuated significantly over the decades.
This has fluctuated significantly over the decades. A prime example of a confounding variable is baby-name popularity.
A prime example of a confounding variable is baby-name popularity. This has fluctuated significantly over the decades.
A prime example of a confounding variable is baby-name popularity. This has fluctuated significantly over the decades.