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Table 1: Probability of specific numbers of carriers being caught as a function of search frequency (source: Dr Bob Anderson, 2005)
Carriers caught		Search frequency (%)
	1-in-5	1-in-4	1-in-3	1-in-2	2-in-3	3-in-4
0	32.8	23.7	13.2	3.1	0.4	0.1
1	41.0	39.5	32.9	15.6	4.1	1.5
2	20.5	26.4	32.9	31.3	16.5	8.8
3	5.1	8.8	16.5	31.3	32.9	26.4
4	0.6	1.5	4.1	15.6	32.9	39.5
5	0.03	0.1	0.4	3.1	13.2	23.7

Table 2: Probability of any carriers being caught as a function of search frequency (source: Dr Bob Anderson, 2005)
Carriers caught		Search frequency (%)
	1-in-5	1-in-4	1-in-3	1-in-2	2-in-3	3-in-4
None	32.8	23.7	13.2	3.1	0.4	0.1
One or more	67.2	76.3	86.8	96.9	99.6	99.9