Mutha fuckin Mu

[Science Abuse]

This rat fuckin bastard right here: http://spiff.rit.edu/classes/phys240/lectures/intro/mu.gif

Specificaly in use as such: http://mathcentral.uregina.ca/RR/database/RR.09.95/weston28.gif

I'm doing self-taught Statistical Procces Control and I've hit an impass with this bastard of a symbol. The book is using it like I'm supposed to know what it represents, and doesn't define it. It comes up in the equasion for population standard deviation, but sample standard deviation uses the sample mean in its place. I've used it in Physics, but friction has no bearing in calculation standard deviation.

Anyone out there know what this bitch means?

[Mensan]

When looking at electrical symbols, it means "micro".

 

Edit: Also the sorority of the fat chicks in "Revenge of the Nerds".

[Guest doggunracing]

Expected value. If discrete, sum of each x times it's probability. If continuous, integral of x times f(x).

 

Discrete case : When a die is thrown, each of the possible faces 1, 2, 3, 4, 5, 6 (the xi's) has a probability of 1/6 (the p(xi)'s) of showing. The expected value of the face showing is therefore: µ = E(X) = (1 x 1/6) + (2 x 1/6) + (3 x 1/6) + (4 x 1/6) + (5 x 1/6) + (6 x 1/6) = 3.5

 

Notice that, in this case, E(X) is 3.5, which is not a possible value of X.

[integranator]

doesn't mu stand for the co-efficient of friction?

[Guest doggunracing]

Originally posted by Tenzig:

I've used it in Physics, but friction has no bearing in calculation standard deviation.

You figure this out, you low-browed Viking?

[Science Abuse]

seems to me workingout, makes some of the stuff about 10 times more time consuming, though. tongue.gif