A line graph titled Percent of Patients Exceeding Acceptable Waiting Time with data plots labeled as Series 1. The horizontal axis reads as follows: Jan-10, Feb-10, Mar-10, Apr-10, May-10, Jun-10, Jul-10, Aug-10, Sep-10, Oct-10, Nov-10, and Dec-10. The vertical axis is numbered from 0 percent to 20 percent, in increments of 2 percent. The approximate data from the graph is as follows: Jan-10: 5 percent, Feb-10: 4 percent, Mar-10: 3 percent, Apr-10: 5 percent, May-10: 3 percent, Jun-10: 10 percent, Jul-10: 5 percent, Aug-10: 2 percent, Sep-10: 1 percent, Oct-10: 2 percent, Nov-10: 1 percent, and Dec-10: 3 percent. Adding the UCL (upper control limit) and LCL (lower control limit) to the chart above creates a control chart. run chart. frequency distribution. variation graph