The previous example illustrates how you can create moving average charts using raw data (process measurements). However, in many applications the data are provided as subgroup summary statistics.

In the U.S., the overall average body fat percentage is around 40% for women and 28% for men. Body fat (BF) percentage refers to the ratio of fat (adipose tissue) in the body in comparison to ...

Key TakeawaysThe Dow Jones Industrial Average enters trading Wednesday on a nine-day losing streak, the longest stretch of ...

The bubbles represent the relative wealth of the average American — just one pixel wide in the chart below — compared to the average wealth of the top 1% of people in the US. We also threw in ...