Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. A linear correlation coefficient that is greater than zero indicates a ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas including investing, ...

Do stock market correlations matter? Statisticians use correlations (or cross-correlation) to measure the relationship between asset classes or investments. The general idea is to better understand ...

In this case: ?p = xA2 ?A2 + xB2 ?B2 + 2 xAxB?A?B?AB ?p = .25(.10)2+.25(.20)2+2(.5)(.5)(.10)(.20) ?p = .15 or 15% ...