Basic Computation: Variance, Standard Deviation Given the sample data x: 23.5 31.2 55.9 67.4 71.3 90.0

(a) Verify that Sx 5 339.3 and Sx2 522376.95

(b) Use the results of part

(a) and the appropriate computation formulas to compute the sample variance s2 and sample standard deviation s.

AppendixLO1