(2.1). Where Yi is a score on the dependent variable for the i th person, a + b X i describes a line or linear function relating X to Y, and e i is an error. Note that there is a separate score for each X, Y, and error (these are variables), but only one value of a and b, which are population parameters.
Geritol is the brand name of complex multivitamin supplements that contain added iron. Geritol is manufactured by GlaxoSmithKline and comes in either a pill form or a liquid tonic. Many women swear by Gertiol, and in fact, there used to be a grass roots slogan for Geritol: âThere's a baby in every bottle!â.
For any of you dear readers too young to remember Geritol, it was a US trademarked name for various supplements, past and present. Geritol was introduced as an alcohol-based, iron and B vitamin tonic by Pharmaceuticals, Inc. in August, 1950 and primarily marketed as such into the 1970s. Geritol was folded into Pharmaceutical's 1957 acquisition of J. B. Williams Co., founded in 1885. J. B. Williams Co. was later bought out by Nabisco in 1971.