According to the 2012 Medical Group Management Association's Physician Compensation and Production Survey, the median net income for physicians per year in primary care is

What is a standard deviation?

A. the square root of a variance B. the number squared C. a line of points D. a graphical depiction of results

Using the birthday rule, which parent's insurance plan would be considered the primary payer for a child being seen as a patient if the mother's birthday is February 12, 1961 and the father's birthday is July 19, 1960?

A. the mother's B. the father's