In the solution of this question, Why the values for new random variable Y is taken as 1 and 0. I am not able to understand this step: Y(i) = 1 if X(i)>0 0 if X(i)=0 Also, I am not able to understand the last step of this solution i.e Therefore, the maximum likelihood estimator of λ under the new observation scheme is lambda = − log(1-Y)= − log