An article discussed radiation therapy and new cures from the therapy, along with the harm that could be done if mistakes were made. The following tables represent the results of the types of mistakes made and the causes of mistakes reported to the New York State Department of Health from 2001 to 2009:

a. Construct a bar chart and a pie chart for the types of
b. Which graphical method do you think is best for portraying these data?
c. Construct a Pareto chart for the causes of mistakes.
d. Discuss the "vital few" and "trivial many" reasons for the causes of mistakes.

Transcribed Image Text:

Causes of Mistakes Quality assurance flawed Data entry or calculation errors Number 355 252 by personnel Misidentification of patient or 174 treatment location Blocks, wedges, or collimators misused Patient's physical setup wrong Treatment plan flawed Hardware malfunction Staffing Software or network malfunction Override of computer data by personnel Miscommunication Unclear/other 133 60 52 24 19