True Confessions of a Heartless Girl Vera. Del and Noreen strike a deal that Noreen will work for Lynda in order to repay him for the lost photographs and rug. It takes 30 minutes to convince Lynda to hire her even though she will be working for no pay. Lynda also asks for $80 a month to pay for the food she eats. Later on, Noreen gets a deep pain inside of her and has spotting on her underwear. Lynda gets her an emergency appointment in Willow Point. Noreen gets an ultrasound and his amazed at the tiny white flashing blip on the screen. She thinks
Root-mean-square deviation Root-mean-square deviation The root-mean-square deviation (RMSD) or root-mean-square error (RMSE) (or sometimes root-mean-square"d" error) is a frequently used measure of the differences between values (sample or population values) predicted by a model or an estimator and the values observed. The RMSD represents the square root of the second sample moment of the differences between predicted values and observed values or the quadratic mean of these differences. These deviations are called "residuals" when the calculations are performed over the data sample that was used for estimation and are called "errors" (or prediction errors) when computed out-of-sample. The RMSD serves to aggregate