Find the standard​ deviation, s, of sample data summarized in the frequency distribution table below by using the formul

[answerhappygod]

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, 11.1. s=
n∑f•x2−∑(f•x)2 n(n−1) Interval 20​-26 27​-33 34​-40 41​-47 48​-54
55​-61 62​-68 Frequency 1 4 5 1 9 37 39
Standard deviation= ?
​(Round to one decimal place as​ needed.)