Question

What are the mean, variance, and standard deviation of these values? Round to the nearest tenth.

11, 11, 3, 1, 11, 11

Answer 1

This should be helpful :)

http://www.mathsisfun.com/data/standard-deviation.html

Answer 2

-_- I know the mean and standard deviation and I'm just confused with the variance..

Answer 3

Variance is how much does your number varry from the mean value, so let us see...

For your numbers the mean is 8

So you want to take each number and see how far away from 8 is it.
so our first number we would do 11-8, so it is 3 away.

The overall variance will be

V^2=(d1^2+d2^2+....d6^2)/n

So you d's are the difference, d1=3 ect. n is the number of samples, you have 6. so put n=6, plug in those values and solve for V :)