Box plots are graphical tools that let you easily visually compare variation between the data sets evaluated.
A stem and leaf plot is a technique to categorize either continuous or discrete values. It is used to organize data as they are collected.
A run chart is a basic graph displays data as they evolve over time. Simple rules can be useful for identifying trends or shifts in process.
A Histogram is a bar chart showing the frequency of an outcome. They can reflect the voice of the process & will certainly be on your exam.
A response plan sets out what to do if a process doesn’t meet one of the quality assurance requirements in the control plan.