PHYSICS · Multi-part · Fermi University Physics · Mathematical Methods for Physics · Probability, statistics and stochastic methods · Probability, statistics and stochastic methods
Mathematical Methods for Physics, Ch Probability, random variables and distributions
Problem
Photons from a faint, steady star arrive at a detector independently of one another and at a constant mean rate of λ=0.20s−1.
((a)) State which distribution models the waiting time until the next photon arrives after a given instant, and justify the choice by naming the property of the arrival process that produces it.
((b)) Find the probability that the waiting time exceeds 10s.