The rate of infection new virus spreading through a hypothetical town is 11%. You work in a hospital
. A) What is the probability that the fifth patient who comes to your hospital is the second patient with this virus.
B) What is the average number of patients you will see without this virus before the second patient with the virus shows up.
C) What is the probability that 10th patient you see is the first one with the virus?
(hint: use geometric and negative binomial distributions to answer this question)