Here is a quick overview for an understanding a standard deviation chart data set. You can see how the examples of the data will fall within one standard deviation of the mean for approximately 68% of ...

Control charts usually present a graphic display of process stability and/or instability with time, from which the you can determine mean and standard deviation. There are two main types of ...

With that, Excel can generate a series of random numbers based on the data entered and the standard deviation. With this data you can then create a curved chart, known as a bell curve. Launch ...