- #1

Biosyn

- 115

- 0

## Homework Statement

Which of the following formulas represents the variance of the data set {x1,x2,x3,...,x10}?

(μ denotes the mean of the data set)

Here is a photo that I took of the problem for better understanding.

http://i.imgur.com/PqEKajx.jpg?1?7734

I understand why the answer I chose is wrong.

What I don't understand is how e) is the answer. I did the calculations by hand with that formula and it is correct.

Would someone please show me how that formula is derived from the variance formula we usually see:

## Homework Equations

Formula for variance