Is there a term(s) for calculating the variance or standard deviation from a value other than the mean?
If I have a set of estimates for jelly beans in a jar, calculating standard deviation and variance is an operation on the mean of those estimates. However, I also want to find the "standard deviation" of the distribution from the actual number of jelly beans in the jar. Is this still called standard deviation even though it's not the deviation from the mean? Is there a term or specific subject area for analysis of a distribution against an independent value like this?