Probability of the opposite event: percents
The probability of an event and the probability that it does not happen add up to 1 (or 100%).
Loading a question…
You've done today's 10 free questions.
Come back tomorrow for 10 more, or get unlimited practice with a membership.
Want more today? Print 20 more questions free, with the answers.
Already a member? Sign in.
See worked examples
There is a 33% chance of rain tomorrow. What is the chance that it does not rain? Write the percent only.
Answer: 67
There is a 5% chance of rain tomorrow. What is the chance that it does not rain? Write the percent only.
Answer: 95
There is a 2% chance of rain tomorrow. What is the chance that it does not rain? Write the percent only.
Answer: 98
Tip: The probability of an event and the probability that it does not happen add up to 1 (or 100%).
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Probability of the opposite event: fractions Year 8
Print a free worksheet with answers (20 questions).
Learn it hands-on
- Is It Fair? Chance and Probability Grades 6–7 · printable lessons
Practise without limits
Members practise as much as they like, every day, and get the printable packs and lessons too.