# Math B Forensic Investigation Essay

Words: 1575
Pages: 7

Forensic Investigation- Math B
By Sandy Storey ,G11B
Introduction
the approximation of stature is a big forensic anthropological apprehension used to classify unidentified and/or mutilated humanoid remains via long bones. Forensic scientists use clues to create the identity of a person and by analysing their skeletal remains many different things can be found for example there is a link between the length of some bones and the height of an individual and scientists can use the remains of a person to create an identity of their previous being usually by using their longer bones such as Femur, Tibia and Humorous. This connection between bone length and height is called regression; it enables scientists to infer height from just a few bones.
Research
No universally applicable formula for finding height from bone length can be derived as the relationship between height and long bone differs according to race, age and sex. To derive the height of an individual from their bones measure the length of the acquired bone and using the below table to determine race and sex then use the correct formula to determine the estimated height.
Here is a table depicting all of the formulae to determine the approximate height from bone length taking into account racial identity.
Bone
Race
Male formula (cm)
Female Formula (cm)
Femur
Caucasian
2.32 X Length + 65.53
2.47 X Length + 54.13

African-American/indigenous
2.10 X Length + 72.22
2.28 X Length + 59.76

Asian
2.15 X Length + 72.57
Not available
Tibia
Caucasian
2.42 X Length + 81.93
2.90 X Length + 61.53

African-American/indigenous
2.19 X Length + 85.36
2.45 X Length + 72.56

Asian
2.39 X Length + 81.45
Not available
Caucasian
3.79 X Length + 79.42
4.74 X Length + 54.93

African-American/indigenous
3.32 X Length + 85.43
3.67 X Length + 71.79

Asian
3.54 X Length + 82.00
Not available
Humorous
Caucasian
2.89 X Length + 78.10
3.36 X Length + 57.97

African-American/indigenous
2.88 X Length + 75.48
3.08 X Length +64.67

Asian
3.68 X Length + 83.19
Not available

Data Analysis-
Original Data-
Person
Gender
Birth date
Age

Height
Race
1
F
7
1998
16
3
161
5
3
Caucasian
2
F
6
1998
16
4
169
5
7
Caucasian
3
M
3
1998
16
7
180
5
11
Caucasian
4
M
4
1998
16
6
177
5
10
Asian
5
M
3
1998
16
7
173.5
5
8 indigenous 6
F
10
1997
17
0
166
5
5 middle east
7
F
10
1998
16
0
157
5
2
Caucasian
8
F
5
1998
16
5
166
5
5
Caucasian
9
F
6
1998
16
4
169
5
7
Caucasian
10
F
6
1998
16
4
163
5
4
Caucasian
11
F
8
1998
16
2
163
5
4
Caucasian
12
M
9
1998
16
1
175
5
9
Asian
13
F
12
1997
16
10
167
5
6
Caucasian
14
F
4
1996
18
6
152
4
12
Asian
15
F
3
1998
16
7
172
5
8
Caucasian
16
M
8
1998
16
2
175
5
9
indigenous
17
F
10
1998
16
0
166
5
5
Caucasian
18
F
5
1998
16
5
166
5
5
Caucasian
19
F
12
1997
16
10
164
5
5
Caucasian

years months cm ft. inch

Statistical Analysis-

Extrapolation of Height Given the Length of Bone-

Finding Height from Femur Length using Formula-

Femur
Number
Male
Female
Race
Factor
Calculated Height 1 30
Caucasian
54.13
2.47
128.23 2 36
Caucasian
54.13
2.47
143.05 3
33

Caucasian
65.53
2.32
142.09

4
32.5

Asian
72.57
2.15
142.445

5
28.8

Indigenous
72.22
2.1
132.7

6 28
Middle East
59.76
2.28
123.6

7 28
Caucasian
54.13
2.47
123.29 8 27.5
Caucasian
54.13
2.47
122.055 9 27.7
Caucasian
54.13
2.47
122.549 10 28.5
Caucasian
54.13
2.47
124.525 11 30
Caucasian
54.13
2.47
128.23 12
34

Asian
72.57
2.15
145.67

13 30.8
Caucasian
54.13
2.47
130.206 14 32.9
Asian

not available not available 15 35.5
Caucasian
54.13
2.47
141.815 16
34

Indigenous
72.22
2.1
143.62

17 30
Caucasian
54.13
2.47
128.23 18 29
Caucasian
54.13
2.47
125.76 19 32.5
Caucasian
54.13
2.47
134.405 20
33

Caucasian
65.53
2.32
142.09

21
34

Caucasian
65.53
2.32
144.41

22
36

Caucasian
65.53
2.32
149.05

23
33

Caucasian
65.53
2.32
142.09

Finding Height from Tibia Length using Formula-

Tibia
Number
Male
Female
Race
Factor