ARCL 228 Assignement 3

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Dec 6, 2023

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Rania TAGEMOUATI 19820406 ARCL 228 Assignment 3 1. A number of partially fleshed bones are found in a ravine: a radius measuring 199 mm long and femur measuring 425 mm long. What would the estimated living stature be if these bones belonged to Jennifer McCormack, a 53-year-old “White” woman? Stature: 2.624 x 42.5 + 49.26 = 160.78 Correction factor: 2 8mm /0.28cm The estimated living stature would be 160.5cm +/- 3.58cm 2. a)The following bone fragment is recovered in the back yard of a house in Kitsilano: humeral head measuring 47.5 mm. A) What would the estimated living stature of this individual be? White male regression formula : 4.27(4.75) + 15.2 = 20.28cm +/- 1.8cm White male stature: 3.574 x 20.28 + 57.21 = 129.69cm +/- 5.71cm Black male regression formula: 4.69(4.75) + 16.27 = 38.45cm +/- 1.57cm Black male stature: 3.277 x 38 45 + 65 46 = 191.46cm +/- 5.72cm The estimated living stature if the individual was a white male would be 129.69cm +/-5.71cm, and if they were a black male it would be 191.46cm +/- 5.72. B) What formula(e) did you use and why? (No correction factors are required; please show your work). Using the formula for both a white and a black male since information regarding race was not given.I also used the male formulas as the length of the humerus head aligned with that of a male. 3. A partially-fleshed skeleton of a male is found and measurements are available for the following bones: T11 – 2.65 cm, T12 – 2.77 cm, L1 – 2.96 cm, L2 – 3.20 cm, L3 - 3.25 cm, L4 - 3.53 cm, L5 – 3.61 cm. A) What is the estimated living stature for this individual? (Please show your work). B) With 95% confidence, could this partial skeleton belong to Matthew Rutherford, a 60 year old male who was recently reported missing, with a reported height of 5ft 8in? The estimated living stature for this individual is around 181.60em - 193cm. 6.16(27.7 + 29.6 + 32.0 + 32.5 + 36.1) + 900.38 = 1873.04mm +/- 54.72mm = 187.30cm +/- 5.7cm %) standard deviation doubled = 10.944om 187.30cm +/- 10.944cm = 176.356cm - 198.244cm ->It is possible this partial skeleton could belong to Matthew Rutherford as the individual's height based on the information given ranges from 5ft 7 - 6ft.
Rania TAGEMOUATI 19820406 ARCL 228 Assignment 3 4. A fragmentary skeleton is found. It is important to reconstruct the stature for this individual, as several people have recently been reported missing in the area, and a stature estimation would help to narrow down the list of potential matches. a) The best method to determine the living stature of this skeleton would be the Fully method. b) The Fully method is the best method as it is the most accurate method currently available to forensic scientists. It includes multiple bones, as well as vertebral column and soft tissue. 5.Douglas Poole was an American tourist who disappeared while hiking in the North Shore Mountains. His medical records listed him as a 37-year-old White male who stood 5 ft 9 in tall. Approximately 3 years after his disappearance, two bones were found in two separate locations, lying on the ground surface: a humerus measuring 28.5 cm and a 3rd metatarsal measuring 8.75 cm. A) With 95% confidence, could these two bones belong to Douglas Poole? B) Why or why not? Please show your work (round to 2 decimal points) White male stature: 3.574 x 28.5 + 57.21 = 159.069cm +/- 11.42cm Range: 147.65cm - 170.49cm White male metatarsal formulae: 12.0 x 8.75 + 86.2 = 191.2 +/- 13.78 Range: 177.42cm - 204.89cm ->A) The humerus could belong to Douglas Poole with 95% confidence because its in the expected range for white male. ->B) The 3rd metatarsal is unlikely to belong to Douglas Poole with 95% confidence, as it is significantly shorter than the expected range for a White male of his age.
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