DEFINITION of 'Median'
The middle number in a sorted list of numbers. To determine the median value in a sequence of numbers, the numbers must first be arranged in value order from lowest to highest. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above. If there is an even amount of numbers in the list, the middle pair must be determined, added together and divided by two to find the median value. The median can be used to determine an approximate average.
INVESTOPEDIA EXPLAINS 'Median'
To find the median value in a list with an odd amount of numbers, one would find the number that is in the middle with an equal amount of numbers on either side of the median. To find the median, first arrange the numbers in order from lowest to highest:
List: 3, 13, 2, 34, 11, 26, 47
Arranged in order, the list becomes: 2, 3, 11, 13, 26, 34, 47
The median is the number in the middle: 2, 3, 11, 13, 26, 34, 47
13 is the median in the list of numbers since there are 3 numbers on either side.
To find the median value in a list with an even amount of numbers, first arrange the numbers in order from lowest to highest:
List: 3, 13, 2, 34, 11, 26, 47, 17
Arranged in order, the list becomes: 2, 3, 11, 13, 17, 26, 34, 47
The median is the average of the two numbers in the middle: 2, 3, 11, 13, 17, 26, 34, 47
13 + 17 = 30 30/ 2 = 15. Fifteen is the median value in this list of numbers.

Moving Average  MA
A widely used indicator in technical analysis that helps smooth ... 
Distribution
1. When trading volume is higher than that of the previous day ... 
Skewness
Describe asymmetry from the normal distribution in a set of statistical ... 
Arithmetic Mean
A mathematical representation of the typical value of a series ... 
Kurtosis
A statistical measure used to describe the distribution of observed ... 
Harmonic Average
The mean of a set of positive variables. Calculated by dividing ...

What's the average salary of an operations research analyst?
The national median salary for an entry level operations research analyst is $50,350 as of 2014, with the middle 50th percentile ... Read Full Answer >> 
What are the toppaying jobs according to the Bureau of Labor Statistics?
According to the Bureau of Labor Statistics figures from 2012, the most recent statistics available as of September 2014, ... Read Full Answer >>

Active Trading Fundamentals
Simple Moving Averages Make Trends Stand Out
The moving average is easy to calculate and, once plotted on a chart, is a powerful visual trendspotting tool. 
Active Trading
Competitive Advantage Counts
What's the best indicator of a company's future success? Its ability to succeed when others fail. 
Technical Indicators
Investors Intelligence Sentiment Index
This indicator can give a overall sense of bull and bear forces  learn what it is and how it's constructed. 
Forex Education
Break Into Forex In 12 Steps
Learn how to get started in forex trading. 
Active Trading Fundamentals
Support And Resistance Basics
Understanding the concept of Support and Resistance in trading can drastically improve your shortterm investing strategy. 
Options & Futures
How To Read The Market's Psychological State
Discover what onbalance volume, accumulation/distribution and open interest can tell you about the market mood. 
Retirement
Economic Indicators To Know
The economy has a large impact on the market. Learn how to interpret the most important reports. 
Economics
Understanding Perpetuity
Perpetuity means without end. In finance, a perpetuity is a flow of money that will be received on a regular basis without a specified ending date. 
Fundamental Analysis
What is a Null Hypothesis?
In statistics, a null hypothesis is assumed true until proven otherwise. 
Investing
How to Use Stratified Random Sampling
Stratified random sampling is a technique best used with a sample population easily broken into distinct subgroups. Samples are then taken from each subgroup based on the ratio of the subgroup’s ...