Problem
A random sample of 10 subjects have weights with a standard deviation of \( 11.2536 \mathrm{~kg} \). What is the variance of their weights? Be sure to include the appropriate units with the result. The variance of the sample data is (Round to four decimal places as needed.)
Solution
Step 1 ：\(\text{Variance} = \text{Standard Deviation}^2\)
Step 2 ：\(\text{Variance} = (11.2536 \mathrm{~kg})^2\)
Step 3 ：\(\text{Variance} = 126.4829 \mathrm{~kg^2}\)
