Question

Government agencies carefully monitor water quality and its effect on wetlands (Reference: Environmental 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. What's the variable? is it qualitative or quantitative? what is the implied population?

Answer 1

So let's take this step by step. What's the variable? So the variable is the value that changes, or the one that's being measured. What's being measured here?

Answer 2

@MichelleyElleyy, do you know?

Answer 3

the amount of nitrogen concentration?

Answer 4

Right! Next part - is it qualitative or quantitative? Do you know what those words mean?

Answer 5

yeah, so it's quantitative

Answer 6

Right. Last part - what's the implied population? This one's pretty easy - what do you think?

Answer 7

i think it would be of the lake

Answer 8

Right, the wildlife and plants of the lake.

Answer 9

thank you so much!

Answer 10

No problem.