Definition
Probability is the chance that a particular event will happen. It is expressed as a number between 0 (impossible) and 1 (certain), or as a fraction or percent.
Probability tells you how likely something is. If you spin a spinner divided into 4 equal parts, you have a 1 in 4 chance of landing on each color.
Examples
- The probability of flipping heads on a coin is 1/2 or 50%.
- The probability of rolling a 3 on a die is 1/6.
- The probability of drawing a red card from a deck is 26/52 = 1/2.