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By default, the IRCHART statement estimates the process mean () and standard deviation ()from the data, as in the previous example. However, there are applications in which known (standard) values and ...

Graph Plot Anaylsis Examine points on a graph and determine their position and standard deviation on the y-axis. Util built for my sister. Output graph is provided so a human can check if all the ...

When you are working with subgrouped data, it can be helpful to accompany a cusum chart for means with a Shewhart s chart for monitoring the variability of the process. This example creates this ...

Graph Examples - Absolute Deviation (Left Graph): Shows the absolute differences between each data point and the mean. The dashed red line represents the mean absolute deviation (MAD). - Standard ...

Learn how to draw and understand information presented by a line graph with this interactive guide by BBC Bitesize for KS2 pupils.

Learn about line graphs with this BBC Bitesize Maths article. For students between the ages of 11 and 14.