STAT 270 Study Guide - Final Guide: Jargon

• School: Simon Fraser University
• Department: Statistics
• Course: STAT 270
• Professor: Richard Lockhart

Document Summary

9 october 2015: we nished slide 21 of discrete distributions", in the text we have nished 4. 2, problems from text: 4. 03, 4. 11, 4. 16, 4. 21, 4. 25, 4. 38, 4. 40, handwritten slides, key jargon, ideas: I desribed the law of the unconscious statistician. If x is a discrete rv and y = h(x) for some function h then. E(y ) = x yp (y = y) = x h(x)p (x = x). y x. Expected value of a constant is the constant. E(ax + by ) = ae(x) + be(y ). I de ned the variance of x by. Var(x) = e[(x )2] = e(x 2) e2(x). The sd of x is the square root of the variance.