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 ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J Catalano is a CFP and Registered ...

Correlation coefficients range from -1 to +1, indicating the strength of relationships between variables. Investors use correlation coefficients for portfolio diversification to reduce risk.

View post: Amazon is selling a foldable cordless treadmill for only $128 Correlation measures the relationship of two stocks based on their returns (percentage gains or losses), not their historical ...

Despite the chant that correlation is not causation, some researchers believe the design of scatter plots nudges us to the wrong conclusions. Can a change in their design lessen that risk? Analyzing ...

第10話では、DOEで作られた MLR（Multiple Linear Regression）モデル が妥当であるかどうかを評価する「Summary of Fit」に焦点を当てました。続く第11話では、Coefficient Plotを読み解きます。 今回のテーマは： 「モデルの中身を具体的にどう読むか？」です。 DOEを理解 ...