How to Choose a Graph: A Quick Reference Guide by 5 Purposes Based on 'What You Want to Show'

Once you have aggregated your data, the next step is to create a graph. However, with so many types available—bar charts, ...
Investopedia

Sampling Distribution: Definition, Use, and Example

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. Brock is a CFA and CPA with more ...
Investopedia

Decoding Simple Interest: Essential Benefits and Examples

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 ...

Questioning Outliers Before 'Deleting' Them: 3 Steps for Finding and Handling Them

Last time, we covered missing values. This time, we look at another classic pitfall: 'outliers'.The average suddenly jumps, or the graph axis is crushed because of a single point. In such cases, you ...