Econ 5 UCSB Final Exam Questions with Correct Answers 2026 Rated A+

Econ 5 UCSB Final Exam Questions with
Correct Answers 2026 Rated A+
Find variance in uniform distribution - CORRECT ANSWER -Var(X)=((b-a)^2)/12, b =max a = min



Var(aX + bY) - CORRECT ANSWER -a^2Var(X)+b^2Var(Y)+2abCov(X,Y).



Joint Prob, Cov: (E(x)=Expected value of x) - CORRECT ANSWER -E(xy)-E(x)E(y)



Find variance binomial - CORRECT ANSWER -np(1-p)



SD from var - CORRECT ANSWER -sqrt(var) = SD



AuB - CORRECT ANSWER -A + B - AnB



Cov(x,y) - CORRECT ANSWER -(CC)(SDx)(SDy)



SE/SSD - CORRECT ANSWER -popSD/sqrt(n)



sample standard deviation - CORRECT ANSWER -sqrt(sum((x-u)^2)/n-1)



standard deviation - CORRECT ANSWER -sqrt(sum((x-u)^2)/n)



Difference in population SSD - CORRECT ANSWER -sqrt(Var1/n1 + Var2/n2)



ChiRsquare,Rx^2R-RCORRECTRANSWERR-((n-1)sVAR/pVAR)