Table 2.
Illustration of the extremely low individual probability of inclusion of those with 1 phone and those with 3 phones in a theoretical population of 100 million and how these probabilities change as the proportion with multiple phones increases.
| One mobile phone | Three mobile phones | Relative probability of inclusion (g) (f)/(c) |
||||
| Percentage of 100 million population with one mobile phone (a) | Number of mobile phones in group (b) 100,000,000 × (a) |
Individual probability of inclusion (c) 1/([b]+[e]) |
Percentage of 100 million population with 3 mobile phones (d) | Number of mobile phones in group (e) 100,000,000×(d)×3 |
Individual probability of inclusion (f) 3/([b]+[e]) |
|
| 100% | 100,000,000 | 1.00E-08 | 0% | 0 | 3.00E-08 | 3 |
| 90% | 90,000,000 | 8.33E-09 | 10% | 30,000,000 | 2.5E-08 | 3 |
| 80% | 80,000,000 | 7.14E-09 | 20% | 60,000,000 | 2.14E-08 | 3 |
| 70% | 70,000,000 | 6.25E-09 | 30% | 90,000,000 | 1.88E-08 | 3 |
| 60% | 60,000,000 | 5.56E-09 | 40% | 120,000,000 | 1.67E-08 | 3 |
| 50% | 50,000,000 | 5E-09 | 50% | 150,000,000 | 1.5E-08 | 3 |