Milimetres and Centimetres.
Chat with our AI personalities
A single observation cannot have a sample standard deviation.
If the population standard deviation is sigma, then the estimate for the sample standard error for a sample of size n, is s = sigma*sqrt[n/(n-1)]
Standard error of the sample mean is calculated dividing the the sample estimate of population standard deviation ("sample standard deviation") by the square root of sample size.
the sample standard deviation
Not a lot. After all, the sample sd is an estimate for the population sd.