A control chart that reflects the amount of dispersion,or spread,present within each sample is known as an)
A)p-chart
B)c-chart
C)R-chart
D)-chart

Question

A control chart that reflects the amount of dispersion,or spread,present within each sample is known as an)
A)p-chart 
B)c-chart 
C)R-chart 
D)-chart

Quizplus · Accepted Answer

An R-chart (range chart) is used to depict the amount of variability, or dispersion, present within each sample. It plots the range (difference between the maximum and minimum values) of a set of subgroups or samples, providing information about the consistency of the process over time. P-chart (proportion chart) is used for controlling the fraction of nonconforming items or defects in a sample, while C-chart (count chart) is used for controlling the number of defects per unit or item. The option D) is not a valid choice as it seems to be a made-up name for a control chart.

A Control Chart That Reflects the Amount of Dispersion,or Spread,present