tag:blogger.com,1999:blog-6651514617266100245.post8511653065027943478..comments2024-01-03T04:58:04.221-05:00Comments on I Hope This Old Train Breaks Down...: Three-Variable ChartsUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6651514617266100245.post-37862359961289702572012-02-15T11:58:12.346-05:002012-02-15T11:58:12.346-05:00That is beautiful! I bet they even have some sort ...That is beautiful! I bet they even have some sort of formula for estimating the percentile based on height and age! Thanks for the connection, Trish! :)untilnextstophttps://www.blogger.com/profile/15285583728476473117noreply@blogger.comtag:blogger.com,1999:blog-6651514617266100245.post-45148904567272858872012-02-13T18:12:06.408-05:002012-02-13T18:12:06.408-05:00A very similar example to what you've shown al...A very similar example to what you've shown already are the percentile graphs a pediatrician uses. They input age ( x axis I think) and weight or height (along the y). The percentile rank would then be the 3rd variabl, shown as a series of different lines. It's not quite a fourth, but all the drs I took my kids to had 2 charts a pink and a blue for girls and boys. My students have happily told me that they were 15th percentile or 85 percentile when they were little.trishhttps://www.blogger.com/profile/04670567206246999417noreply@blogger.com