Consider a processor which is running at 4.1GHz. The datasheet for this processor indicates 3 different classes of instructions, listed below. The different classes of instructions take different amounts of time to complete: We are curious how well this processor performs and conduct the following experiment: We run a representative program and observe the first 1 million instructions. The instruction frequencies are: Answer the following questions: a) What is the average CPI for these 1 million instructions? b) How much time did it take to execute these 1 million instructions? How good do you think this experiment is? Be specific, and back up your argument with examples as needed