Population Std. Dev VS. Sample Std Dev.

I know that the main diference when using the two is size But, what are other scenarios where one would be used vs the other? Is there anywhere in the Quant section?

You would always use Population Standard Deviation if it is known, though in reality it hardly ever is, so that is when you must rely on Sample Standard Deviation.

> I know that the main diference when using the two > is size the difference is in concept. the population is the “true” one. the sample is estimated.