Items measured 1 2 3 4 5 6 7 8 9 10 Length in cm 8.0 14.0 21.0 28.0 35.0 45.0 54.0 62.0 74.0 85.0 Length in inches (in fractions) 3(1/8) 5 () 8(1/4) 11 13(7/8) 17(5/8) 21(1/4) 24(3/8) 29 33(38) Length in inches(decimal) Number of Centimeters per Inch( from slope of line): 3.13 5.50 8.25 11.00 13.88 17.63 21.25 24.38 29.00 33.38 Aver age value for number of Centimeters Per inch(from average ratio)------------- % error--------- Ratio of cm to inches % error-