# statistics definitions

• Jan 4th 2007, 03:30 PM
star29867
statistics definitions
median
mode
mean
range
• Jan 4th 2007, 05:35 PM
Soltras
Quote:

Originally Posted by star29867
median
mode
mean
range

Consider some set of numbers.

The median is the number (not necessarily in the set) where half the numbers are greater than it, and half the numbers are lower than it.

The mode is the number (not necessarily unique) that occurs the most frequently in the list.

The mean is the "average" number (although, again, not necessarily in the set) -- calculated by adding up all the numbers and dividing by the number of things added.

The range is the highest number minus the lowest number.
• Jan 4th 2007, 06:38 PM
ThePerfectHacker
Quote:

Originally Posted by star29867
median
mode
mean
range

For example,
10,20,30,40,50

The Median is the "middle" thus 30.

If you have,
10,20,30,40
The Median is the average of the numbers in middle,
(20+30)/2=25

The range is the difference of the largest and smallest, that is the "range" of the numbers.