Asked by Quentin

When you are determining the probability of an event, why must the probability be between 0 and 1? Explain your answer.
Answered by Bosnian
Probability is the ratio of the desired outcomes to all possible outcomes.

If there are no desired outcomes, the ratio is 0 over all possible outcomes, thus 0.

If the event is all possible outcomes, the ratio is all possible outcomes over all possible outcomes, thus 1.
Answered by lidia
When you are determining the probability of an event, why must the probability be between 0 and 1? Explain your answer.
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