Mathematics for IGCSE & O level - Probability (Section 6 - No. 34)
Which of the following statements about probabilities are true?
Probabilities can be negative.
Probabilities are always between 0 and 1 (inclusive).
A probability of 0.5 means an event is equally likely to happen or not happen.
The sum of the probabilities of all possible outcomes is always 1.
Explanation
Probabilities can only be between 0 and 1, and the sum of all possibilities should equal 1.
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