A Coding Supervisor Has Been Trying to Manage the Workload

A coding supervisor has been trying to manage the workload of an increase in the number of charts that need to be coded from a recent corresponding increase in admissions. While her coders have been getting the charts coded, she has also seen the percentage of miscoded charts increase. She suspects that it might be from the charts coded with overtime hours. What is the independent variable?

A) Number of charts
B) Overtime hours
C) Increase in admissions
D) Number of errors