NO THOUGHTS… HEAD EMPTY

NO THOUGHTS... HEAD EMPTY var(x) = E (x^2) - E(x)^2
NO THOUGHTS… HEAD EMPTY var(x) = E (x^2) – E(x)^2

Ah! Well *I* have some thoughts! Looks like you’re talking about VARIANCE! That great and awe inspiring measure of dispersion! If you’d like to look at a book about statistics, head over to the HA29’s – lots of intro textbooks there. We have many online as well so stop by the reference desk if you need help finding them! Enjoy!