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1a.Given the sample standard deviation of a data set is 10.34, what is the sample variance?...

1a.Given the sample standard deviation of a data set is 10.34, what is the sample variance?

(a) 3.22 (b) 106.92 (c) 9.34 (d) 20.68

1b.Subtracting 3 from each value in a data set would not change which of the following measures?

(a) The range (b) The sample variance (c) The standard deviation (d) All of the above would not change.

Math   Statistics-And-Probability   
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