MEAN

MODE

MEDIAN

The mean is the average of the numbers: a calculated "central" value of a set of numbers. To calculate: Just add up all the numbers, then divide by how many numbers there are.

The number which appears most often in a set of numbers.

The middle number (in a sorted list of numbers). To find the Median, place the numbers you are given in value order and find the middle number.

The Three Averages

3, 13, 7, 5, 21, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29

When we put those numbers in order we have: 3, 5, 7, 12, 13, 14, 21, 23, 23, 23, 23, 29, 39, 40, 56

Range

the difference between the highest and the lowest score.