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Mathematics 9 Online
OpenStudy (anonymous):

Find the standard deviation, and variance of Lucas’ lunch expenditures. Round to the nearest thousandth Expenditures In Order: 4.86, 5.10, 5.50, 4.75, 4.50, 5.00, 6.00

Directrix (directrix):

@xxxheynellyxxx You can use the online standard deviation and variance calculator at http://easycalculation.com/statistics/standard-deviation.php Do study your text to determine the population or sample measures are the statistics appropriate for the problem.

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