Given the sample data.x:21,17,15,30,27find the range

Given the sample data.x:21,17,15,30,27find the range: b. Verify that Ex=110 and Ex^2=2,584
c. use the results of part b and appropriate computation formulas to compute the sample variance s to the second power and sample standard deviation s
s^=
s=
suppose the given data comprise the entire population of all x values. compute the population variance o^ and population standard deviation o.
o^=
o=
 
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