Assignment:
You want to make a statement about the variability in the costs of personnel shelters. After collecting sample data (cost in $K) on 9 shelters you perform some preliminary calculations.
Given the information provided:
- The coefficient of variation is about 17.64%
- The variance is about $61.72K
- The standard deviation is about $79.36K
- The coefficient of variation is about 18.86%
Provide complete and step by step solution for the question and show calculations and use formulas.