These are typically captured using a control chart -- a statistical tool used ... from which the you can determine mean and standard deviation. There are two main types of control charts that ...

Standard deviation is a metric that shows ... of the symmetrical line in the normal distribution graph. In any case, a 5 percent daily gain on Apple’s shares wouldn’t be common.

So, calculating the standard deviation here can help companies better assess the performance of new R&D projects in the context of the range of typical outcomes for previous ones. The bottom line ...

You can easily do this using an Excel spreadsheet and calculating the standard deviation (stdev function) of the 12 monthly returns for each stock, as shown in the chart above. Doing this gives a ...

In response to my article, Is the Stock Market Too Concentrated?, which relied upon standard-deviation calculations to assess investment risk, a reader wrote: “My problem [with your argument] is ...