A graph that displays computed means for a series of small random samples over a period of time is called a(n)_______.
A) chart
B) R chart
C) p chart
D) c chart
E) S chart

Question

A graph that displays computed means for a series of small random samples over a period of time is called a(n)_______.
A) chart 
B) R chart 
C) p chart 
D) c chart 
E) S chart

Quizplus · Accepted Answer

A graph that displays computed means for a series of small random samples over a period of time is called an X-bar chart, also known as a sample mean chart or process mean chart. The other options listed (R chart, p chart, c chart, and S chart) are all different types of control charts used in quality control, but they do not display computed means for small random samples.

A Graph That Displays Computed Means for a Series of Small