Neville wants to show the relationship that exists between trucks that have their tires changed after 10,000 miles and those that do not change their tires with the incidence of truck accidents on a highway. Which type of SPC chart will be useful to depict this data?

They have two basic purposes, to establish the control limits for a process and then to monitor the process to indicate when it is out of control. Control charts exist for attributes and variables; within each category there are several different types of control charts.