Question 28 (15 points) With n processes in memory at once, the probability that all processes are waiting for I/O (in which case the CPU will be idle) is p" where n is the number of processes for the degree of multiprogramming), and P is the fraction of time that a process spends waiting for I/O to complete. If we assume this probability, then it follows that CPU utilization = 1-p" 1. If a multiprogrammed system has 8 degrees of multiprogramming li.e. 8 1. If a multiprogrammed system has 8 degrees of multiprogramming (i.e. 8 programs in memory), and each process spends 70% of its time waiting for 1/0, what will be the CPU utilization? 2. If we have 14 programs in memory and the goal is to insure 97% CPLJ utilization, what is the maximum I/O wait percentage/ratio that can be tolerated