Question 13

Points. 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 [ E ( F . x 2) ] - [E (1 . x )]2 S = n(n - 1) Interval 20-29 30-39 40-49 50-59 60-69 70-79 D orre Frequency 1 16 39 16 10 3 Standard deviation = (Round to one decimal place as needed.) Irces Question Viewer SS prary Help Me Solve This View an Example Get More Help - Clear All Check Answer US