Why do some chart packages have statistical summaries?
Some chart packages that are drawn from public domain data include statistical summaries. Examples of such include many of the chart packages under our Economic section, like: money supply, unemployment insurance claims, the employment situation or GDP. We also include summary statistics for our rate of return charts. We do this because the reported number is often in the news, such as, the unemployment rate dropped to 5.6% or the S&P 500 is up 22.5% over the last 12 months.
