please provide answer for both using a formula NOT excel.

21 ABC ABC AaBbccc Pane 29. The Krasnapolski is a top-of-the-line hotel in Amsterdam, the Netherlands. Among their many services, they rent bicycles to guests who arrive randomly throughout the day, They have 30 bikes, with 8 guests renting a bicycle each day during the summer season. Guests keep bicycles for three days on average, with a standard deviation of three days. On average, how log does a customer have to wait for a bicycle (in terms of days)? a) 80% b) 0.11 days c) 3.11 days d) 0.05 days 32. Consider a scenario where we pool two identical single-server systems into one pooled system (this means the utilization of each server is unchanged). In terms of reduction in wait time, this will be similar to instead doing the following: a) cutting variability factor by 33% b) cutting variability factor in half c) tripling the variability factor d) cutting the variability factor by 67%