1. D

    Standard Normal random variable problem: I have no idea on how to start...

    Assume X is a standard normal random and Y ~ N(0,9). What is the 97.5 percentile of p(X) and p(Y)?
  2. P

    Tricky Poisson Formula Rearrangement

    Hello, I am currently doing some bus stop designs. I have not done statistics for a while but remember once doing poisson distributions at Uni. The problem I have, I think, requires a specific arrangement of the poisson formula for cumulative distribution. If I have x number of buses...