Problem
Listed below are foot lengths in inches for 11 randomly selected people taken in 1988 . Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. Are the statistics representative of the current population of all people? 9.2 9.5 9.4 9 9.7 10.5 9.5 10.2 9 9.7 10.3 The range of the sample data is seople. (Type an integer or a decimal. Do not round.)
Solution
Step 1 ：The data given is foot lengths in inches for 11 randomly selected people. The smallest value is 9 and the largest value is 10.5.
Step 2 ：To find the range of the data, we need to subtract the smallest value from the largest value.
Step 3 ：So, the range would be 10.5 - 9 = 1.5 inches.
Step 4 ：\(\boxed{1.5}\) inches is the range of the sample data.
