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Stephani Danelle Perry (born March 14, 1970) is an American science fiction and horror writer, publishing works as S. D. Perry and Stephani Perry. She has contributed tie-in works to several long-running franchises, including Resident Evil , Star Trek , Aliens , and Predator .
Star Trek: Deep Space Nine book line is based on the television series of the same name. The book line was relaunched with the publication of three thematically linked works: the short story collection Lives of Dax (1999), edited by Marco Palmieri; A Stitch in Time (2000), by Andrew J. Robinson; and the two-part novel Avatar (2001), by S. D. Perry.
(The Captain's Table, Book 4) Diane Carey [b] July 1998 0-671-01467-6: Pathways † Jeri Taylor: August 1998 0-671-00346-1: Shadow
DC Comics: Anatomy of a Metahuman is a graphic novel featuring characters appearing in American comic books published by DC Comics.The book, written by S. D. Perry and Matthew K. Manning with art by Ming Doyle, is presented as a collection of files created by Batman detailing the characters of the DC Universe's physiologies and abilities.
Perry is a native of the Deep South. His residences have included Louisiana, California, Washington, and Oregon. Prior to working full-time as a freelance writer, he worked as a swimming instructor, lifeguard, assembler of toys, a clerk in a hotel gift shop and car rental agency, aluminum salesman, martial art instructor, private detective, and nurse.
Dave Kerby (2014) recommended the rank-biserial as the measure to introduce students to rank correlation, because the general logic can be explained at an introductory level. The rank-biserial is the correlation used with the Mann–Whitney U test, a method commonly covered in introductory college courses on statistics. The data for this test ...
The Spearman correlation between two variables is equal to the Pearson correlation between the rank values of those two variables; while Pearson's correlation assesses linear relationships, Spearman's correlation assesses monotonic relationships (whether linear or not). If there are no repeated data values, a perfect Spearman correlation of +1 ...
Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.