Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f represents the class...

Extracted text: Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 9.0 Σ(-2)]-[Σιτ η]. n(n-1) Interval 30-39 40-49 50-59 60-69 70-79 80-89 40 Frequency 23 24 8 Standard deviation =(Round to one decimal place as needed.)