Post a New Question

environmental sciences

posted by .

Hi there,

I am an arts student who, due to signing up for classes very late in the semester, has been stuck with an environmental sciences course. This course was just fine until I got our final assignment, which is a Water Quality Index lab. The math in it is just plain scary. Not only do I not have the background to do this, but I have not done any form of mathematics since I was 17 and in highschool. I have posted the equation and data given to me in class. Can anyone help me? (the assignment is due tomorrow).

This is the equation we were given:


SVi is Sensitivity Value of the ith taxon
Xi is the density of the ith taxon
n is the number of taxa in the sample
1n is the natural logarithm
e is the number 2.718


Quantitative sample: (two Surber samples combined) (first listed is # in samples, second is sensitivity)

Eph., 43, 3
Hep., 25, 3
Per., 3, 4
Perlo, 5, 4
Cap, 1, 4
Cor, 6, 2
Tip, 16, 2
Emp, 3, 2
Chir, 80, 2
Hyd, 38, 3
Rhy, 1, 4
Pol, 2, 2
Lim, 1, 2

Quantitative sample: (two Surber samples combined) (first #= number in samples, second = sensitivity) (I think this was the one that we actually collected in the lab)

Eph 43, 3
Per, 3, 4
Cor, 6, 2
Tip, 14, 2
Emp, 3, 2
Hyd, 26, 3
Rhy, 1, 4

Does anyone have any idea what these numbers mean (god I feel like I am on Lost or something)? If not, anyone know where I could possibly find people who do?

Thanks a lot guys.

  • environmental sciences -

    the equation didn't post. Remember, Einstein had grad students checking his math.

    So get some partners and get help on the math. Maybe you will learn something.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question