Each year a magazine comples a list of the nchest people in a certain country, T

Question

Each year a magazine comples a list of the nchest people in a certain country, The top 10 on the Est are as shown in the table below Delermine the range and sample standard deviaion Click the icon to view the top 10 ist of richest people in a certain country Determne the range of the data seft Range 423 (Type an integer or a decimal Do not round) Determine the sample standard deviation of the data set (Typ, an integer or a decaat Round to two decmai paces as needed ) Top 10 Richest People in a Country Person Person f Person 2 Person 3 Person 4 Person Person 6 Person 7 Person & Person 9 Person 10 Wealth ($ billions 66.1 44.2 40 3 29.9 29 9 27.7 269 263 269 23.8 PrintDone

Explanation / Answer

Xi (Xi-mean) (Xi-mean)^2 66.1 31.9 1017.61 44.2 10 100 40.3 6.1 37.21 29.9 -4.3 18.49 29.9 -4.3 18.49 27.7 -6.5 42.25 26.9 -7.3 53.29 26.3 -7.9 62.41 26.9 -7.3 53.29 23.8 -10.4 108.16 TOTAL= 342 1511.2 MEAN= 342/10= 34.2 VARIANCE s^2 1511.2/9= 167.911 s= sqrt(167.911)= 12.96

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