17. Twenty Days of Plant Growth The growth (in centimeters) of two varieties of plant after 20 days is shown in this table. Construct a back-to-back stem and leaf plot for the data, and compare the distributions. Variety 1 Variety 2 20 12 39 38 18 45 62 59 41 43 51 52 53 25 13 57 59 55 53 59 42 55 56 38 50 58 35 38 41 36 50 62 23 32 43 53 45 553. Internet Connections The following data represent the estimated number (in millions) of computers connected to the Internet worldwide. Construct a Pareto chart and a horizontal bar graph for the data. Based on the data, suggest the best place to market appropriate Internet products. Location Number of computers Homes 240 Small companies 102 Large companies 148 Government agencies 33 Schools 47 Source: IDC.5. Automobile Fuel Efficiency Thirty automobiles were tested for fuel efficiency, in miles per gallon (mpg). The following frequency distribution was obtained. Construct a histogram, a frequency polygon, and an ogive for the data. Class boundaries Frequency 7.5-12.5 12.5-17.5 17.5-22.5 22.5-27.5 27.5-32.5