An example of how to do this is provided at the bottom of this page. 1. What is the probability there are exactly 2 customers in line in a two-server model? 2. What is the probability there are fewer than 2 customers in the system in a two server model? 3. What is the probability there are fewer than 1 single customer in the line in a three-server model? 4. What is the probability there are more than three customers in the system in a two-server model?

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?