what is the difference between c-chart and graph how to interpret control chart with a majority of zeros when case count is zero, what is considered out of control which chart should be used to interpret a control chart containing a majority of zero values? when the case number is zero, i interpret the case as how to interpret a control chart of cases which graph is considered out of control what is the rule for a c-chart how do you interpret case count data what is the case number of c chart when the case count of a control chart is zero when does c charts have to follow poisson s equation how can you interpret a control chart with the majority of zero values? why should a case count be zero compared to the control level what is the most common result of a case number in a c-chart what is the case of a c chart why is it difficult to read a case on a chart? how to interpret a control chart in c chart what is the most common value that is considered out of control when the case number is zero in a chart? why is the majority of cases zero