Identify the implied population in the information below. Government agencies carefully monitor water quality and its effect on wetlands (Reference: Environment Protection Agency Wetland Report EPA 832-R- 93-005). Of particular concern is the concentration of nitrogen in water draining from fertilized lands. Too much nitrogen can kill fish and wildlife. Twenty-eight samples of water were taken at random from a lake. The nitrogen concentration (milligrams of nitrogen per liter of water) was determined for each sample. The variable in this information is nitrogen concentration (mg nitrogen/l water). Group of answer choices

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Identify the implied population in the information below.
Government agencies carefully monitor water quality and its
effect on wetlands (Reference: Environment Protection Agency Wetland Report EPA 832-R-
93-005). Of particular concern is the
concentration of nitrogen in water draining from fertilized
lands. Too much nitrogen can kill fish and wildlife. Twenty-eight samples of water were taken
at random from a lake. The nitrogen concentration
(milligrams of nitrogen per liter of water) was determined for each sample. The variable in this
information is nitrogen concentration (mg nitrogen/l water).
Group of answer choices
number of fish
samples of water taken at random
samples of water taken at random
nitrogen concentration (mg nitrogen/l water) in the entire lake
none of these choices
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