I want to find the standard deviation of the percentages, but weighted for their data volume. ie, the first and last data points should dominate the calculation.

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"?

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 () …

Jan 25, 2021 · A dumb solution using Excel. Use the function NORM.INV where you set the probability at 0.75, the mean at 110 and the standard deviation to a variable that you can find …

Oct 30, 2015 · Please help me to understand If the mean and standard deviation for percentages can be calculated, What conditions are needed in order to calculate the mean and standard …

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 …

Dec 14, 2019 · Well, what do you mean by "the values in one standard deviation" and "the values in the second standard deviation"? I haven't heard that kind of phrasing before. Did you get …

Jan 31, 2023 · Now, where I got confused is how to get the mean and standard deviation of the spread. I'm a bit confused on how to calculate these, and I'll really appreciate it if I can get a …

Sep 6, 2023 · see below the answer by : Graipher allows calculating the standard deviation from the mean and the number of samples. The mean of this distribution is given by μ=np , where n …

Oct 19, 2016 · But now how do I calculate the variance of the log-transformed datasets? It would seem I'd have to transform back because calculating it directly on the transformed data would …