STAT 3122 Final: FINAL EXAM REVIEW & FORMULA SHEET
Document Summary
This guide includes: formula sheet, notes from review sessions for exam 2 and the final exam. This guide does not replace reviewing notes and homework sets. Random variables: ( ) =()() if an only if a, b are independent. () =(1) (|1) + +() (|) is a partition if 1, , is a partition. =1 npr = = ! ncr = = = () =2 =(2) [()]2. X~pois(: find the mgf - () =(, find the expectation using mgf - [()]|=0 =(, find e(2) using mgf - 22 [()]|=0 =(2) X~bin(n, p) k = 0, 1, , n. Need to know distributions: and so on . Joint pdf: f( (,) ) = (,) Properties of joint distributions: var(x+y) = var(x) + var(y) if x & y are independent, e[g(x)h(y)] = e[g(x)] * e[h(y)] if x & y are independent. Created by kassandra walker not for redistribution personal study use only.
