I understand that the standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values. How can I estimate the standard deviation by …

Nov 25, 2017 · What is an estimator of standard deviation of standard deviation if normality of data can be assumed?

May 18, 2015 · At 4:30 of this video the author decided to estimate the standard deviation of the population with sample standard deviation (sample size was $100$). In the next video, the …

Dec 24, 2013 · Now how can I get the best estimate of StDev knowing the sample size, mean, max and min? Dec 24, 2013 at 11:35 This is much more tricky. You would need to make some …

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 …

Here I will explicitly calculate the expectation of the sample standard deviation (the original poster's second question) from a normally distributed sample, at which point the bias is clear.

Apr 22, 2022 · Given that I have not only the quartiles but the mean, median and N, is there a better way to estimate the standard deviation of the sample?

Apr 30, 2015 · I need the standard deviation. I generate about a hundred points and take the standard deviation of the points. This gives a hopefully good approximation of the true …

Jun 5, 2018 · Indeed, the standard error of the mean is bigger than the standard error of the standard deviation. So in that sense it is easier to estimate standard deviations, than means.

another way of thinking about the n-2 df is that it's because we use 2 means to estimate the slope coefficient (the mean of Y and X) df from Wikipedia: "...In general, the degrees of freedom of …