Elvis Picardo is a regular contributor to Investopedia and has 25+ years of experience as a portfolio manager with diverse capital markets experience. Yarilet Perez is an experienced multimedia ...

The correlation function is a useful signal-analysis tool that engineers often overlook. Its formidable equation, which you have probably not thought about since your undergraduate signals and systems ...

In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...

What Is the Correlation Coefficient? The correlation coefficient is a metric that measures the strength and direction of a relationship between two securities or variables, such as a stock and a ...

Bitcoin (BTC) has historically moved in the opposite direction of the U.S. Dollar Index (DXY), which gauges the greenback's exchange rate against major fiat currencies, including the euro. The ...

The correlation of bitcoin (BTC) and ether (ETH) to the U.S. Dollar Index (DXY) has once again turned negative. BTC’s correlation coefficient to the DXY has fallen to -0.36, after moving as high as ...