A typical nurse's salary (in dollars) can range from $\$25,000$ to $\$55,000$ per year. A computer is programmed to randomly choose $20$ nurse's salaries from among the $200$ nurses employed at a hospital and compute the standard deviation.
The computer repeats this process a total of $50$ times. The sampling distribution of the standard deviation of the nurse's salaries is shown below.
One of the points on this sampling distribution, $\$8,165$, is highlighted.
What does this value represent?