Probability of the opposite event: fractions
The probability of an event and the probability that it does not happen add up to 1 (or 100%).
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The probability of winning a game is 4/5. What is the probability of not winning? Write a fraction in lowest terms.
Answer: 1/5
The probability of winning a game is 5/8. What is the probability of not winning? Write a fraction in lowest terms.
Answer: 3/8
The probability of winning a game is 1/5. What is the probability of not winning? Write a fraction in lowest terms.
Answer: 4/5
Tip: The probability of an event and the probability that it does not happen add up to 1 (or 100%).
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