Probability
⭐ MasteredProbability tells how likely something is to happen, from 0 (impossible) to 1 (certain). Flipping a coin has a 1 in 2 chance of heads.
The chance of rolling a 6 on a fair die is 1 in 6.
All about Probability
Probability measures how likely an event is to happen. It is a number from 0, which means impossible, to 1, which means certain.
When you flip a fair coin, there are two equally likely outcomes, so the chance of heads is 1 in 2, or one half.
When you roll a dice, each number from 1 to 6 has a chance of 1 in 6. Probability helps us make sensible guesses about the future.
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Real-life uses of Probability
- Predicting the weather with a chance of rain
- Understanding the odds in board games and card games
- Judging how fair a dice or spinner is
Frequently asked questions about Probability
What is the probability of rolling a 6 on a fair dice?
One in six, or about 0.17. There are six equally likely outcomes.
Does a coin land on heads more often after tails?
No. Each flip is independent, so the chance stays the same, even after a long run of tails.
How is probability written?
As a fraction, decimal or percentage. 1/2, 0.5 and 50% all mean the same chance.