Dbranden19171 Dbranden19171 30-05-2023 Mathematics contestada IfX1,X2,⋯Xn is a sample from the population X with mean EX=μ, and DX=σ2. Please calculate (1) E(X1+X2,⋯+Xn) (2) D(X1+X2,⋯+Xn)
