Regression Analysis is a way of estimating the relationships between different variables by examining the behavior of the system. There are many techniques for modeling and analyzing the dependent and independent variables.

Basic Six Sigma Probability terms like independence, mutually exclusive, compound events, and more are the necessary foundations for statistical analysis.

A matrix diagram shows the relationships between two concept. (Ex. project objective, methods, results, causes, people, etc)

The purpose of fault tree analysis is to effectively identify cause(s) of system failure and mitigate the risks before it occurs.

Cumulative sum chart (CUSUM) is a type of control chart used to detect the deviation of the individual values or subgroup mean from the target value.