CPU-on-Demand (CPUD) offers real-time high-performance computing services. CPUD owns 1 supercomputer that can be accessed through the Internet. Their customers send jobs that arrive on average every 3 hours. The standard deviation of the interarrival times is 4 hours. Executing each job takes on average 2 hours on the supercomputer.
What is the utilization (as a percent) of CPUD’s supercomputer?