Probability

Probability goes from impossible to certain. As a number it is between 0 and 1, often written as a fraction.

Example: The probability of rolling a 6 on a fair die is 1/6.

Lessons, worksheets, practice and tools on this: Data and graphs.

Related words

• Mean: The average: add all the values, then divide by how many there are.
• Median: The middle value when the data is put in order.
• Mode: The value that appears most often in a set of data.
• Line plot: A graph that shows data on a number line, with an X above the number for each data point.

All words