Trend and Variation — Statistics Video Year: 2012 Publisher: TeddyTV Resource Type: Video Topics Covered: Materials Available: Data and Technical Assistance Area Served: U.S. Link: here. By Angie Hacker| 2018-08-09T19:03:56+00:00 August 9th, 2018|Comments Off on Trend and Variation — Statistics Video Share This Page, Choose Your Platform! FacebookTwitterLinkedinRedditTumblrGoogle+PinterestVkEmail