Statistics for Environmental Engineers

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223


41


32


4


36


19


206


40


14


6


41


43


135


47


40


6


47


18


329


72


27


9


42


16


221


72


8


6


13


14


235


68


14


7


21


3


241


54


7


20


13


13


207


41


19


9


24


15


464


67


17


10


24


27


393


49


19


4


24


25


238


53


24


7


49


13


181


54


28


5


42


17


389


54


25


4


48


25


267


91


23


8


69


21


215


83


30


6


32


63


239


61

31.3 Influent Loadings. The data below are monthly average influent loadings (lb/day) for the Madison, WI, wastewater treatment plant in the years 1999 and 2000. Evaluate the correlation between BOD and total suspended solids (TSS).


1999


BOD


TSS


2000


BOD


TSS


Jan


68341


70506


Jan


74237


77018


Feb


74079


72140


Feb

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