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".
INVESTOPEDIA EXPLAINS '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 ... 
Unconditional Probability
The probability that an event will occur, not contingent on any ... 
Conditional Probability
Probability of an event or outcome based on the occurrence of ...

Fundamental Analysis
Find The Right Fit With Probability Distributions
Discover a few of the most popular probability distributions and how to calculate them. 
Trading Strategies
Know How To Manage Gaps On Your Trading Strategy
Gaps generate profitable strategies right after they print, as well as during retracements that test those levels, often months or years later. 
Charts & Patterns
Why These Are 2015's MostPromising Bank Stocks
Which bank stocks should offer the best bang for your buck in 2015? Possibly these, so read on. 
Chart Advisor
Trade Healthcare Providers with this ETF
In good times and bad times one of the best sectors for retail investors to look into is the healthcare providers. Here's an ETF to consider. 
Fundamental Analysis
Is Apple's Stock Over Valued Or Undervalued?
Despite several drawbacks, the CAPM gives an overview of the level of return that investors should expect for bearing only systematic risk. Applying Apple, we get annual expected return of about ... 
Trading Strategies
Trading On The Psychology Of Round Numbers
Price action around big round numbers, like 10, 100 and 1000 set up special trading opportunities that take advantage of shifting crowd psychology. 
Chart Advisor
Commodity Traders Are Using Momentum To Profit From These Stocks
Active traders are drawn to momentum strategies. These momentum winners of 2015 are worth a trader's second look. 
Trading Strategies
How To Make The Most of Fibonacci Grids
Build your Fibonacci skills by finding the longest price swing on your chart of interest and placing a grid over the trend. Repeat at shorter intervals. 
Trading Strategies
Day Trading: Top Scenarios To Take Profits
Three ways to take profits while day trading, based on price movement and what the asset is doing that day. 
Chart Advisor
These 4 Swing Trades Could Place You in the Money
Take advantage of moves both higher and lower with swing trades based on trend channels.