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Approximate probability scale (see EFSA, 2019, Table 4)
| Probability term | Subjective probability range | Additional options | |
|---|---|---|---|
| Almost certain | 99–100% | More likely than not: > 50% |
Unable to give any probability: range is 0–100% Report as ‘inconclusive’ cannot conclude, or ‘unknown’ |
| Extremely likely | 95–99% | ||
| Very likely | 90–95% | ||
| Likely | 66–90% | ||
| About as likely as not | 33–66% | ||
| Unlikely | 10–33% | ||
| Very unlikely | 5–10% | ||
| Extremely unlikely | 1–5% | ||
| Almost impossible | 0–1% | ||
