Technical Report - AUTO21

Figure 3.2.3: A scatter plot of the actual vs. estimated heights of children inthe sample.80.00Child #1 - Etimated height60.0040.0020.0020.0030.0040.0050.0060.0070.0080.00Child #1 - Actual heightAmong the children whose age was recorded, 90.4% were older than 12 monthsof age and 36.5% were in the age group (4-9] years (see Table-3.2.1).Restraint status, seat types and other relevant variables:Table 3.2.2 & 3.2.3 report the distributions of child’s restraint status, seat types,gender and relationship to the driver.Table-3.2.1: Child’s age, weight and height groups.Category Actual Actual/EstimatedFrequency Percent Frequency PercentWeight Groups 1811 100% 2452 100%< or = 20 lbs 76 4.2% 193 7.9%(20 – 40] lbs 602 33.2% 865 35.3%(40 – 80] lbs 743 41.0% 933 38.1%> 80 lbs 390 21.5% 461 18.8%Height Groups 1723 100% 2101 100%< or = 40 inches 481 27.9% 679 32.3%(40 – 57] inches 921 53.5% 1055 50.2%> 57 inches 321 18.6% 367 17.5%13