Gender Frequency Percent
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Boys 655 50.8
Girls 635 49.2
IQ Frequency Percent
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60-89 238 18.4
90-99 298 23.1
100-109 332 25.7
110-119 243 18.8
120-144 179 13.9
Teacher's Advice Frequency Percent
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No further education 11 0.9
Extended primary educ 161 12.5
Manual 509 39.5
Agricultural 12 0.9
General 407 31.6
Secondary school 18 1.4
Pre-University 172 13.3
Father's Profession Frequency Percent
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Unskilled labour 14 1.1
Schooled labour 326 25.3
Lower white collar 43 3.3
Shopkeepers 501 38.8
Middle white collar 243 18.8
Professional, Managers 163 12.6
School Frequency Percent
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1 29 2.2
2 33 2.6
3 31 2.4
4 66 5.1
5 39 3.0
6 45 3.5
7 39 3.0
8 31 2.4
9 53 4.1
10 31 2.4
11 30 2.3
12 36 2.8
13 52 4.0
14 29 2.2
15 33 2.6
16 65 5.0
17 57 4.4
18 31 2.4
19 26 2.0
20 27 2.1
21 25 1.9
22 27 2.1
23 26 2.0
24 36 2.8
25 11 0.9
26 27 2.1
27 15 1.2
28 27 2.1
29 20 1.6
30 32 2.5
31 49 3.8
32 57 4.4
33 37 2.9
34 39 3.0
35 35 2.7
36 28 2.2
37 16 1.2