Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Andy Smith is a Certified Financial Planner ...

When reviewing cash flow data for your small business, knowing the standard deviation can help you determine if the numbers are out of whack. Calculating standard deviation manually can be ...

Forbes contributors publish independent expert analyses and insights. TJ McCue is Seattle-based and covers tech & productivity tools. This article is more than 10 years old. Many new business owners ...