Changes

'''Average''' is the sum of a group of numbers divided by the number of numbers it the group.  For example, the average of 3, 5, and 7 is <math>15 \div 3=5</math>.

'''Average''' is the sum of a group of numbers divided by the number of values in the group.  For example, the average of 3, 5, and 7 is <math>15 \div 3=5</math>.

Another term for average is the [[arithmetic mean]].

Another term for average is the [[arithmetic mean]].

The other two common types of average are the median and the mode.

The other two common types of average are the median and the mode.

*A median is the value which splits the group of numbers in the middle: half are higher, half are lower.

*The median is the value which splits the group of numbers in the middle: half are higher, half are lower.

*A mode is the most common number.

*The mode is the most common number.

[[category:mathematics]]

[[category:Mathematics]]