Wastewater samples taken from an industrial discharge had the chemical oxygen demand (COD) concentrations below in mg/L.
Question:
Wastewater samples taken from an industrial discharge had the chemical oxygen demand (COD) concentrations below in mg/L. Determine the
(a) Arithmetic mean (by hand and spreadsheet),
(b) Median,
(c) Mode,
(d) Standard deviation (by hand and spreadsheet).
COD values: 452, 364, 415, 395, 404, 470, 391, 395, 425, 430, 380
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a Mean 452 364 415 38011 411 mgL b Arrange values in increasing order and select middle value ...View the full answer
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