Question

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/1 liter of water).

number of fish
samples of water taken at random
none of these choices
nitrogen concentration (mg nitrogen/1 liter of water) in the entire lake
samples of water taken at random

Explanation:

The implied population is what the samples are meant to represent. Here, 28 water samples are taken from a lake to study nitrogen concentration. The goal is to understand the nitrogen - concentration in the entire lake. So the implied population is the nitrogen concentration in the entire lake.

Answer:

nitrogen concentration (mg nitrogen/1 liter of water) in the entire lake