There are two beer companies, produce two kind of different beer. There output level of last 20 month has been shown as below: A company 20 30 35 25 26 35 40 69 70 71 72 75 72 61 51 52 41 52 32 36 B Company 46 46 32 45 32 50 52 70 78 20 31 33 35 36 50 55 52 22 61 27 Required: Show the Frequency Distributions of both Companies and compare the output level of two companies. Analysis which company's output level is more stable