Almost every day you can find in media commentary that XYZ is causing stocks to fall (or rise). Such definitive statements are common—but what’s almost always missing is statistical proof. And if you ...

What is Pearson correlation test, Pearson product moment correlation or Pearson r? Pearson’s correlation helps us understand the relationship between two quantitative variables when the relationship ...

View post: Walmart's bestselling Lenovo tablet is on sale for just $106, but not for long Correlation measures the relationship of two stocks based on their returns (percentage gains or losses), not ...

Once the ranks for the two variables are found, we apply the formula for the correlation to the ranks as follows: Both Spearman’s rank and Pearson’s correlation tests share the purpose of assessing ...

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 ...

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in. The content of this article is provided for information ...