Question

what is X bar = pls tell

Answer 1

Step-by-step explanation:

The standard chart for variables data, X-bar and R charts help determine if a process is stable and predictable. The X-bar chart shows how the mean or average changes over time and the R chart shows how the range of the subgroups changes over time. It is also used to monitor the effects of process improvement theories

Answer 2

Answer:

x bar = zigma Xi by n hope it help s

Step-by-step explanation: