DEFINITION of 'Symmetrical Distribution'
A situation in which the values of variables occur at regular frequencies, and the mean, median and mode occur at the same point. Unlike asymmetrical distribution, symmetrical distribution does not skew. A symmetrical distribution is commonly shaped like a bell curve when depicted on a graph. If a line is drawn down the middle of the graph, the two sides will mirror each other.
Also called a "symmetric distribution" or "normal distribution".
BREAKING DOWN 'Symmetrical Distribution'
A type of symmetrical distribution that is not shaped like a bell curve is a bimodal symmetric distribution. This graph is shaped like two bell curves placed side by side. The two sides of this graph still mirror each other; however, only the mean and median occur at the same point  the center of the graph. The modes occur at two points: the highest point in each of the two bell curves.

Multinomial Distribution
A distribution that shows the likelihood of the possible results ... 
Asymmetrical Distribution
A situation in which the values of variables occur at irregular ... 
Bell Curve
The most common type of distribution for a variable. The term ... 
Normal Distribution
A probability distribution that plots all of its values in a ... 
Conditional Probability
Probability of an event or outcome based on the occurrence of ... 
Unconditional Probability
The probability that an event will occur, not contingent on any ...

Fundamental Analysis
Find The Right Fit With Probability Distributions
Discover a few of the most popular probability distributions and how to calculate them. 
Chart Advisor
3 Charts That Suggest Now Is The Time To Invest In Real Estate (VNQ, SPG,PSA)
Real estate assets have some of the strongest uptrends around. We'll take a look at three candidates poised for a move higher. 
Chart Advisor
Stocks With More Upside Due to Bear Traps (TAP, SPY)
A bear trap is a pattern that typically leads to at least a shortterm rise in prices. Here are stocks exhibiting the pattern. 
Markets
The (Expected) Market Impact of the 2016 Election
With primary season upon us, investor attention is beginning to turn to the upcoming U.S. presidential election. 
Term
How Statistical Significance is Determined
If something is statistically significant, it’s unlikely that it happened by chance. 
Active Trading Fundamentals
New Traders: Trade the Market in 5 Steps
New traders shouldn’t throw money at securities without knowing why prices move. Follow these five steps to tilt the odds in your favor. 
Chart Advisor
Watch For a Bounce in These Emerging Markets (BRF, PEK)
While downtrends are clearly in control of the direction of many emerging market ETFs, shortterm indicators suggest a bounce higher could be in the cards. 
Economics
3 Charts All Investors Should See
Given the abysmal start to the year, the defining question is whether this is another painful but temporary correction, or the start of a bear market. 
Investing Basics
Valuation Models: Apple’s Stock Analysis With CAPM
The capital asset pricing model, or the CAPM, estimates the expected return of an asset based on the systematic risk of the asset’s return. 
Stock Analysis
Will "FANG" Stocks Outperform in 2016?
Facebook held the most bullish accumulationdistribution pattern into year’s end, telling investors to focus on this issue in 2016.

What is Fibonacci retracement, and where do the ratios that are used come from?
Fibonacci retracement is a very popular tool among technical traders and is based on the key numbers identified by mathematician ... Read Full Answer >> 
Do plane tickets get cheaper closer to the date of departure?
The price of flights usually increases one month prior to the date of departure. Flights are usually cheapest between three ... Read Full Answer >> 
Is Colombia an emerging market economy?
Colombia meets the criteria of an emerging market economy. The South American country has a much lower gross domestic product, ... Read Full Answer >> 
What are some of the most common technical indicators that back up Doji patterns?
The doji candlestick is important enough that Steve Nison devotes an entire chapter to it in his definitive work on candlestick ... Read Full Answer >> 
Tame Panic Selling with the Exhausted Selling Model
The exhausted selling model is a pricing strategy used to identify and trade based off of the price floor of a security. ... Read Full Answer >> 
Point and Figure Charting Using Count Analysis
Count analysis is a means of interpreting point and figure charts to measure vertical price movements. Technical analysts ... Read Full Answer >>