SECTION 2.1 Frequency Distributions and Their Graphs 53 Constructing a Frequency Distribution and a Relative Frequency Histogram In Exercises 37-40, construct a frequency distribution and a relative frequency histogram for the data set using five classes. Which class has the greatest relative frequency and which has the least relative frequency? 37. Taste Test Data set: Ratings from 1 (lowest) to 10 (highest) provided by 36 people after taste-testing a new flavor of protein bar 6 9 2 9 9 6 10 5 7 6 5 10 4 10 ADO N 5 3 6 3 3 6 5 N 38. Years of Service Data set: Years of service of 28 Ohio state government employees 13 8 10 9 10 9 13 11 10 11 7 9 14 13 11 12 8 15 13 10 9 11 10 12 14 9 15 19 39. Fijian Banded Iguanas Data set: Lengths (in centimeters) of 28 adult Fijian banded iguanas 68 65 70 61 60 60 69 61 64 74 64 62 70 63 75 74 71 70 66 64 67 66 70 73 72 70 40. Triglyceride Levels Data set: Triglyceride levels (in milligrams per deciliter of blood) of 28 patients 209 140 155 170 265 138 180 295 250 320 270 225 215 390 420 462 150 200 400 295 240 200 190 145 160 175 195 223