I was reading a book on computer architecture for my exam and came across this table. I understand all the columns except for the ratio of means. How is the ratio of means of 10 and 100 become 91.8. I would really appreciate if someone can provide me with an explanation.
The column "ratios of means" is the ratio of arithmetic means of the reference and of the machines: so the first is "reference1"/"machine1" (5050/55), the second is "reference1"/"machine2" (5050/100.5), the third is "reference2/machine1" and so on.