Standard deviation and variance are two key measures commonly used in the financial sector. Standard deviation is the spread of a group of numbers from the mean.

You must specify a variance for each of the latent variables in this model using the STD statement. You can specify either a name, in which case the variance is considered a parameter to be estimated, ...

Calculating Standard Deviation . Standard deviation is calculated by first subtracting the mean from each value, and then squaring, adding, and averaging the differences to produce the variance ...