Multiple choice general knowledge math & puzzles

Which of these numbers cannot be a probability?

  1. -0.00001

  2. 0.5

  3. 1.001

  4. 0

  5. 1

Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation

Probabilities must be between 0 and 1 inclusive. Negative values (like -0.00001) and values greater than 1 (like 1.001) cannot represent probabilities because probability measures the likelihood of an event occurring on a scale from impossible (0) to certain (1).