What's standard deviation, you ask? To put it simply, standard deviation is how spread out your data is from the mean. A higher deviation means a higher volatility, a lower deviation a lower ...

Standard deviation is the measurement of spread in a data set. It can be used to help decide the best choice from among several options. The difference between sample and population standard ...

How to calculate Standard Deviation in Excel The Standard Deviation is a term used in statistics. The term describes how much the numbers if a set of data vary from the mean.

For example, suppose that the manufacturing process described in the previous example produces engines whose weights are normally distributed with a mean of 1250 and a standard deviation of 12.

For example, if you're measuring the average diameter of precision part you are manufacturing for a customer, a small standard deviation means your production process is producing consistent products.

There's no question there are some problems using standard deviation to measure risk. But until someone invents a better way, standard deviation has been shown to do a good job in real life ...

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