Find the standard deviation, s, of sample data summarized in the frequency distribution table 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: Interval Frequency
30-39 2
40-49 2
50-59 6
60-69 2
70-79 8
80-89 33
90-99 38