Find the standard deviation of a population data set.
Check the final answer first, then review the worked steps.
Problem
Find the standard deviation of a population data set.
Answer
\(1.5\)
Step-by-step solution
Calculate the mean, then the variance, and finally the standard deviation of the population data set {4, 7, 6, 5, 8}. The mean is 6. The variance is 2.2. The standard deviation is $\sqrt{2.2} \approx 1.5$.