Learn how excluding volatile items in financial and economic data improves long-term trend analysis. Discover examples in corporate earnings and economic indices.

James McWhinney is a long-tenured Investopedia contributor and an expert on personal finance and investing. With over 25 years of experience as a full-time communications professional, James writes ...

Google Sheets is a powerful tool for data analysis, offering a range of functionalities that cater to both beginners and intermediate users. This article aims to guide you through the process of ...

This short course provides an overview of statistical analyses useful for comparing the means for one or more samples. The statistical training will include the discussion of the one sample t-test, ...

Technical analysis is the process of examining a stock or security’s price movements, trading volume, and trends to determine how or when to trade it and predict its price movements. There are plenty ...

How scenario analysis tools can help investors manage financial risk and evaluate returns. Forecasting is a no-win situation. If you get it right, people go about their business. But if it’s wrong, ...

Overview: Structured online platforms provide clear, step-by-step learning paths for beginners.Real progress in data science comes from hands-on projects and co ...