Question: Per capita health care expenses the annual per capita out-of-pocket expenses (in dollars) for U.S. health care for selected years from 2006 and projected to 2014 are shown in the table and figure.
(a) Use n = 4 equal subdivisions and left-hand endpoints to estimate the area under the graph from 2006 to 2014.
(b) What does this area represent in terms of per capita out-of-pocket expenses for U.S. health care?