The 7 QC tools are simple graphical  and statistical tools that are  used for: • Problem Solving and Process Improvement

The check sheet is used for  collecting, recording, and analyzing  the data. Data may be  numerical, observations and  opinions, etc.

Fishbone diagram  helps to identify all possible potential  causes  which contributes to  the problem/effect.

A Histogram is a pictorial representation of a set of data, and the most  commonly used bar graph for showing frequency distributions of  data/values.

The Pareto chart helps to Narrow  the problem area or prioritize the  significant problems for corrective  measures. It gives us information about Vital  few from Trivial many

It is a graphical representation of  the collected information/data and  it helps to monitor the process  centering or process behavior  against the specified/set control  limits.

A Scatter graph is used to find out  the relationship between two  variables. Scatter diagram is also known as  Correlation Chart, Scatter Plot, and  Scatter Graph.

A technique used to analyze and  divide a universe of data into  homogeneous groups called - Strata. It involves observing data,  splitting them into distinct classes  or categories to see a different  process for better analysis.