Step 1: Write the probability scale.
The probability scale ranges from 0 (impossible) to 1 (certain). It can be described using words:
Impossible→Unlikely→EvenChance→Likely→Certain
Numerically, this corresponds to:
0→between0and0.5→0.5→between0.5and1→1
The probability scale from impossible to certain is:
Impossible→Unlikely→EvenChance→Likely→Certain
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