What is a median?
http://www.mathsisfun.com/data/frequency-grouped-mean-median-mode.html
Scroll down and read about "median."
in a triangle, it is the line from a vertex to the midpoint of the opposite side.
A median is a measure of central tendency in statistics. It represents the middle value of a set of data when the data is arranged in ascending or descending order.
To find the median of a set of numbers, you can follow these steps:
1. Arrange the data in ascending or descending order.
2. If the number of data points is odd, the median is the value in the middle of the ordered list. For example, if you have 7 data points, the median will be the fourth value.
3. If the number of data points is even, the median is the average of the two middle values. For instance, if you have 8 data points, you would average the fourth and fifth values to find the median.
The median is a useful measure when dealing with skewed data or outliers as it provides a better representation of the central value than the mean.