It measures how far each number in the set is from the mean (average), and thus from every other number in the set. Variance is often depicted by this symbol: σ 2. It is used by both analysts and ...
In Mean Girls, Lacey Chabert's Gretchen Wieners always wanted to make "fetch" a term for cool, despite the hate that Regina George (Rachel McAdams) had for it. She's finally done it in the best ...