Recent content by lolypop

  1. L

    Joint characterisitc function

    1. The problem statement X1,X2,X3...Xn are RVs with the same mean and covariance function as follow : COV(Xi,Xj)=ρ (σ)^|i-j| if Sn=X1+X2+...Xm , Sm=X1+X2+...Xm where m<n find the joint characterisitic function of Sn and Sm 2. Homework Equations . the general equation of the...
  2. L

    Solving Joint Distribution of Exponential RVs: X, Y, Z & U

    Hi , I got this question in my midterm today but up till now I don't know how to solve it , The Question is as follow : If X and Y are two exponential Rv with different lambda . and there's a new Rvs Z and U are defined such that : Z= 0 : X<Y and 1 : X=> Y U= min(X,Y) and the...
  3. L

    Can Z and U be considered independent in this scenario?

    Hi , I got this question in my midterm today but up till now I don't know how to solve it , The Question is as follow : If X and Y are two exponential Rv with different lambda . and there's a new Rvs Z and U are defined such that : Z= 0 : X<Y and 1 ...
Back
Top