Mathematics, 04.09.2021 06:00 ladypink94
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.
s=
n∑f•x2−∑(f•x)2
n(n−1)
Interval
20-26
27-33
34-40
41-47
48-54
55-61
Frequency
1
21
44
17
10
Answers: 1
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