The formula with (M-1)/M is correct. If you have a doubt, check it by setting all the weights equal to 1, and you will obtain classical formula for unbiased estimate for the standard deviation with …

Aug 30, 2020 · The population standard deviation is relevant where the numbers that you have in hand are the entire population, and the sample standard deviation is relevant where the …

Aug 11, 2015 · Which version of Excel and what implementation of regression (LINEST? The analysis toolpack? Something else)? Are these standardized or studentized residuals? Could …

Mar 17, 2022 · In Excel, my data is between 0.000001 and 0.005 and treated as "logarithmic" so I transformed by log 10 (log10 (x)) which are all negative. The Excel Var.P () and Stdev.p () …

I have a monthly average for a value and a standard deviation corresponding to that average. I am now computing the annual average as the sum of monthly averages, how can I represent …

Essentially all its probability is contained within seven standard deviations of the mean. Therefore Sheppard's corrections are applicable to data assumed to come from a Normal distribution.

Oct 16, 2021 · The standard deviation for set 1 is 3.74 (with a mean 8.7) and the one for set 2 is 4.72 (with a mean of 92). In both cases, the data points are "gathered" around their respective …

There is no standard deviation of a categorical variable - it makes no sense, just as the mean makes no sense. E.g. in your example, what is the "average color"?

Oct 30, 2015 · It was a blanket request to calculate the mean and standard deviation of a set of metrics to set thresholds for them. So in this example, the 98.4% average would be used to …

There is CONFIDENCE.NORM in Excel and CONFIDENCE.T. When I refer to all these 6 values, I am using STDEVP (or whatever exactly it is called in the English version of Excel--I got …