ENGR 1301 Spot Speed Study Example

Step 1: record Step 2: sort Step 3: speed classes

Original Data Sorted DataSpeeds (mph)

Car Speed Car Speed Class Min Max LabelNo. (mph) No. (mph)1 35.12 44.03 45.84 44.35 36.36 54.07 42.18 50.19 51.810 50.811 38.312 44.613 45.214 41.115 55.116 50.217 54.3 total18 45.419 55.220 45.721 54.122 54.023 46.124 54.225 52.326 57.327 46.828 57.829 36.830 55.8

31 43.332 55.333 39.034 53.735 40.836 54.537 51.638 51.739 50.340 59.841 40.342 55.143 45.044 48.345 47.846 47.147 34.848 52.449 49.150 37.151 65.052 49.553 52.254 48.455 42.856 49.557 48.658 41.259 48.060 58.061 49.062 41.863 48.364 45.965 44.766 49.567 56.068 49.169 49.270 56.471 48.5

72 45.473 48.674 52.075 49.876 63.477 60.178 48.879 52.180 48.781 61.882 56.683 48.284 62.185 53.386 53.4

Step 3: speed classes

FrequenciesCars Diff Cum