Hi, I am having trouble solving the below question:

The population and sample standard deviation, of a list of n elements are 6 and 2root10 respectively. What is n?

Since there are no solution video as well, so I am unable to understand the solution to it.

I had a look at chatGPT solution for this, but it had created a relationship bw sample SD and population SD which is not present in the modules so far. Hence looking for clarity on this question.

Thanks