Please explain n-1 when we divide by it

This webpage was reloaded because it was using significant memory. Jesse Go Math 12 Fall 2021 48121 Question 1, 3.2.69 HW Score: 80%, 4 of 5 points E Homework: 3.2 Part 2 of 2 Points: 0.5 of 1 A simple data set has been provided to practice the basics of finding measures of variation. For the data set, determine the a. range. b. sample standard deviation. 4, 8, 6, 1,5 D .. . . . a. The range is 7. (Simplify your answer.) b. The sample standard deviation is (Round to one decimal place as needed.)