INFO FOR (Q20-Q21). Yosemite Park Tenaya Lodge has 20 family size cabins. As there is a lot of low-fare demand that arrives early. They reserve some of their cabins for late arriving reservations, which they estimate is Poisson distributed. Assume that late arriving reservations all show up to claim their cabin. The rooms reserved for late arriving high fare go unfilled if there is insufficient high fare demand. Question 20 2 pts Suppose they reserve 6 of their cabins for late arriving reservations, which they estimate is Poisson distributed with mean 5.5. What is the expected number of empty cabins under this policy? Question 21 2 pts Suppose they reserve four (4) of their cabins for late arriving reservations, which they estimate is Poisson distributed with mean 5.5. What is the probability (between 0 and 1) that they will sell all of the cabins reserved for late arrivals?