## N-1 as Unbiased Estimator of the Population Variance

### Calculate Standard Deviation

Axis or axes along which the standard deviation is computed. Retrieved from " https: If your population size is one element, then yes the standard deviation of your population will be 0.

Your comment to moodywoody is a great start. It is not possible to find an estimate of the standard deviation which is unbiased for all population distributions, as the bias depends on the particular distribution.

Alternatively, it may be possible to use the Raoâ€”Blackwell theorem as a route to finding a good estimate of the standard deviation. While this may prompt the belief that the temperatures of these two cities are virtually the same, the reality could be masked if only the mean is addressed and the standard deviation ignored.

It'll be the last entry here. She has taught science courses at the high school, college, and graduate levels.

### Unbiased estimator for population variance

Cross-sectional study Cohort study Natural experiment Quasi-experiment. Perhaps you want to do this because over time, you're trying to breed watermelons that have fewer seeds, and you should see whether you are actually making progress.