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OpenStudy (anonymous):
MEDALS The following data values represent a sample. What is the variance of the values? 17, 5, 11, 1, 11 A. 28 B. 18 C. 8 D. 38
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OpenStudy (anonymous):
Calculate average first. What is the average ?
OpenStudy (anonymous):
8
OpenStudy (anonymous):
I think average is 9. Calculate Variance = (17-9)^2 + (5-9)^2 +(11-9)^2 +(1-9)^2 +(11-9)^2
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