Experimental test of probabilistic radioactive decay. Trials are run with 20 heads-up pennies. One half-life is one flip of all heads-up coins. All coins landing tails-up are discarded.
| Half-life | Estimated remaining |
Trial 1 | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Trial 6 |
|---|---|---|---|---|---|---|---|
| HL0 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| HL1 | 10 | 11 | 11 | 6 | 14 | 10 | 10 |
| HL2 | 5 | 7 | 8 | 4 | 4 | 4 | 4 |
| HL3 | 2.5 | 2 | 6 | 2 | 3 | 2 | 1 |
| HL4 | 1.25 | 0 | 3 | 0 | 2 | 1 | 1 |
| HL5 | 0.625 | 0 | 2 | 0 | 1 | 1 | 0 |
| HL6 | 0.313 | 0 | 0 | 0 | 0 | 1 | 0 |
| HL7 | 0.156 | 0 | 0 | 0 | 0 | 1 | 0 |
| HL8 | 0.078 | 0 | 0 | 0 | 0 | 1 | 0 |
| HL9 | 0.039 | 0 | 0 | 0 | 0 | 0 | 0 |