Excel's VALUE function has only one argument: where a is the value stored as text that you want to convert into a number. This can be hard-coded inside double quotes or a reference to a cell ...

The adjusted r-squared is helpful for multiple regression and corrects for erroneous regression, giving you a more accurate correlation coefficient. If you look at the multiple regression we did, ...

Understanding, organizing, and validating data directly affects the accuracy of stories. New tools make cleaning accessible ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

Measuring—and delivering—what consumers really want by Eric Almquist, John Senior and Nicolas Bloch When customers evaluate a product or service, they weigh its perceived value against the asking ...