This example was inspired by a Twitter post and investigates whether statistically there's a relationship between weekly COVID cases in the US and critical "no scent" US Amazon reviews for one of the ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

1 UCLA Department of Mathematics, Los Angeles, CA, USA. 2 Derivatives Software, www.dersoft.com. 3 Cassandra Capital Management, www.cassandracm.com. 4 MathFinance at ...

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 ...

Jason Fernando is a professional investor and writer who enjoys tackling and communicating complex business and financial problems. David Kindness is a Certified Public Accountant (CPA) and an expert ...

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 ...

Correlation is not causation — you’ve probably heard it a million times. But it can be a bit tricky to truly wrap your head around it. Could a simple image help with this? Nic Cage has done a lot of ...