1. The problem is to find the population standard deviation of a set of numbers. 2. The formula for population standard deviation is $$\sigma = \sqrt{\frac{\sum (x_i - \mu)^2}{N}}$$ where $x_i$ are the data points, $\mu$ is the population mean, and $N$ is the number of data points. 3. First, calculate the mean $\mu = \frac{\sum x_i}{N}$. 4. Then, subtract the mean from each data point and square the result. 5. Sum all the squared differences. 6. Divide this sum by $N$. 7. Finally, take the square root of the result to get the population standard deviation. Note: Since the actual numbers are not provided, the calculation cannot be completed here.