when Cpk = 0 then the process is perfectly centred at the mid-point of the tolerances.

The range of adataset is the difference between the largest and smallest values.

Demings wheel:

The spread of the measurable characteristic, in the case of individual values, is evaluated using the moving range (range calculated from the n value and the n-1 value).

50% of the dataset are above the mode.

A quality characteristic is statistically controlled when monitored during production,

Ishikawa fishbone diagram (also called: cause-and-effect diagram) indentify five main categories of root causes to be analyzed to solve a problem known as 5 "M". 5 "M" are :

On a Henry diagram, when the plot results in a rounded shape with a greater spread of data on the upper side, then...

Tolerance limits indicate the permitted variation of a measurable quantity on individual parts.

An X Rem card is used when there is only one part per sample