Hand and Foot Modifier FA -F9 and T1 - T9. E1 - E4, FA - F9, TA - T9 Level II Modifier. E1-E4 Anatomic modifiers which are associated with the eyelid. FA, F1- F9 Anatomic modifiers which are associated with the fingers. TA, T1- T9 Anatomic modifiers which are associated with the toes.
X-bar and R Control Chart Issues and Resolution. X-bar and R control charts are used in quality control to identify when special cause or out-of-control conditions occur in time-series data so that timely corrective actions can be taken to resolve problems.
Another frequent request is for the x bar character (used to indicate the arithmetic mean in mathematics and statistics), shorthand characters such as c with a line over it (shorthand for with), and certain medical symbols.he same EQ field can be used to create lines over characters and words in a different way by using a different switch, the \X switch. To get an idea of the results of this field, try this experiment: 1  Select a character, word, or phrase in a body of text.