Statistics Canada
Symbol of the Government of Canada

Table 2
Sampling error (with a 90% level of confidence)

Sample size Percentage observed
2
98
5
95
10
90
15
85
20
80
25
75
30
70
35
65
40
60
45
55
50
50
percentage
25 4.6 7.2 9.9 11.8 13.2 15.2 15.1 15.7 16.1 16.4 16.5
50 3.3 5.1 7.0 8.3 9.3 10.7 10.7 11.1 11.4 11.6 11.6
100 2.3 3.6 4.9 5.9 6.6 7.6 7.5 7.9 8.1 8.2 8.2
200 1.6 2.5 3.5 4.2 4.7 5.4 5.3 5.6 5.7 5.8 5.8
300 1.3 2.1 2.9 3.4 3.8 4.4 4.4 4.5 4.7 4.7 4.8
400 1.2 1.8 2.5 2.9 3.3 3.8 3.8 3.9 4.0 4.1 4.1
500 1.0 1.6 2.2 2.6 2.9 3.4 3.4 3.5 3.6 3.7 3.7
600 0.9 1.5 2.0 2.4 2.7 3.1 3.1 3.2 3.3 3.3 3.4
700 0.9 1.4 1.9 2.2 2.5 2.9 2.9 3.0 3.0 3.1 3.1
800 0.8 1.3 1.7 2.1 2.3 2.7 2.7 2.8 2.9 2.9 2.9
900 0.8 1.2 1.6 2.0 2.2 2.5 2.5 2.6 2.7 2.7 2.7
1,000 0.7 1.1 1.6 1.9 2.1 2.4 2.4 2.5 2.5 2.6 2.6
1,200 0.7 1.0 1.4 1.7 1.9 2.2 2.2 2.3 2.3 2.4 2.4
1,400 0.6 1.0 1.3 1.6 1.8 2.0 2.0 2.1 2.2 2.2 2.2
1,600 0.6 0.9 1.2 1.5 1.6 1.9 1.9 2.0 2.0 2.0 2.1
1,800 0.5 0.8 1.2 1.4 1.6 1.8 1.8 1.9 1.9 1.9 1.9
2,000 0.5 0.8 1.1 1.3 1.5 1.7 1.7 1.8 1.8 1.8 1.8
3,000 0.4 0.7 0.9 1.1 1.2 1.4 1.4 1.4 1.5 1.5 1.5
4,000 0.4 0.6 0.8 0.9 1.0 1.2 1.2 1.2 1.3 1.3 1.3
6,000 0.3 0.5 0.6 0.8 0.8 1.0 1.0 1.0 1.0 1.1 1.1
8,000 0.3 0.4 0.6 0.7 0.7 0.8 0.8 0.9 0.9 0.9 0.9
Source: Van Dijk, Jan, Van Kesteren, John, Smit, Paul, Tilburg University, UNICRI, UNODC, (2007) 'Criminal Victimisation in International Perspective: Key Findings from the 2004-2005 ICVS and EU ICS'.