Posted: July 24th, 2017

An inexpensive screening test for a disease is available through analysis of venous blood. The distributions of blood concentrations for persons with and without the disease are depicted in the graph.

An inexpensive screening test for a disease is
available through analysis of venous blood. The
distributions of blood concentrations for persons
with and without the disease are depicted in the
graph. The disease is irreversible and fatal if not
discovered and treated early. Which of the
following letters represents the most appropriate
cutoff point between normal and abnormal