Chapter 2: Quality Management Tools and Procedures
1. Which of the following is a pictorial representation of a frequency distribution?
a. Pareto chart
b. Fishbone chart
d. Scatter plot
Rationale: A histogram is a data display tool in the form of a bar graph that often plots the
most frequent occurrence of a quantity in the center.
2. The range of variation around the mean is called
b. standard deviation.
Rationale: The standard deviation is the range of variation or dispersion of a set of values
surrounding the mean.
3. The number of items actually measured from a population is called a
b. data set.
Rationale: A sample is the number of items actually measured from a population.
4. The FDA uses how many classifications of medical devices?
Rationale: Class I are general controls, class II are special controls, and class III are