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Frankie Has Data from a Sample of 45 People Analyzing ΣX2\Sigma X^{2}

Question 31

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Frankie has data from a sample of 45 people analyzing their knowledge about cholesterol.He has calculated = 600 and ΣX2\Sigma X^{2}
(ΣX)(\Sigma X) = 90.Calculate the sample standard deviation for these data.

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