Investor Glossary-correlationInvestor Glossary-correlationInvestor Glossary-correlationInvestor Glossary-correlationInsightful stock market charts - Click here
investor
Categories    # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Correlation

The HTML to link to this page
 

In statistics, correlation is an assessment of the extent of linear relationship between two variables. A correlation coefficient is the index of the extent of the linear relationship. The most common correlation coefficient is the Pearson product-moment correlation, defined as the covariance of the two variables divided by the product of their standard deviations. The Pearson correlation coefficient is always between -1 and 1. The weaker the relationship, the closer the correlation coefficient is to 0. A positive correlation coefficient indicates a higher value for one variable tends to correspond to a higher value for the other, and a negative correlation coefficient indicates a higher value for one variable tends to correspond to a lower value for the other. Correlation is not an appropriate statistical technique for categorical data such as gender or color. In contrast, correlation is an extremely useful technique for prices. Correlation of stock prices is a simple yet informative analysis. If two stocks have a high correlation, their prices tend to rise and fall in sync.



Rate this correlation definition...

Learn about investing with the Investor Glossary Term of the Day


Click here for insightful stock market charts. Where is the market headed? The answer may surprise you. Find out
with the exclusive & Barron's recommended charts of Chart of the Day.


Popular Terms: balance sheet, Zero Cost Collar, LIBOR, implied volatility, wholly-owned subsidiary, inflation, per diem, Key Rate Duration, open position, limit order, 144a, ex-dividend, covered put, EBITDA, option premium, retained earnings, annual return, quality assurance, diluted share, labor relations, ex-dividend date, 401a, average price per share, deferred revenue, 1035 exchange, risk management, in escrow, command economy, required rate of return, liquidity ratio, minority interest, cancelled check, current ratio, reverse mortgage, FTSE, 1031 exchange, real GDP, FICO score, stock split, irrevocable trust, margin rate, APR, VIX, phantom income, stock market close, deferred tax, dividends payable, debt service coverage, class C shares


Accounting | Banking | Bonds | Brokers | Economy | Futures | Mutual Funds | Options | Real Estate | Retirement | Stocks | Taxes | Technical Analysis
Investor Glossary | Term of the Day | Suggest a Term | Chart of the Day | Dogs of the Dow
©2004-2015 Investor Glossary - All rights reserved - Terms of Use