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In statistics, ordinary least squares (OLS) is a type of linear least squares method for choosing the unknown parameters in a linear regression model (with fixed level-one [clarification needed] effects of a linear function of a set of explanatory variables) by the principle of least squares: minimizing the sum of the squares of the differences between the observed dependent variable (values ...
Guidelines from the American Society of Clinical Oncology discourage the use of CA19-9 as a screening test for cancer, particularly pancreatic cancer.The reason is that the test may be falsely normal (false negative) in many cases or abnormally elevated in people who have no cancer (false positive) in others.
The redactor of the text allows that the covenant is open to all Israelites who accept the sect's halakha, while condemning the others as the "wicked of Judah" against whom God would direct "a great anger with flames of fire by the hand of all the angels of destruction against persons turning aside from the path". The text states that those who ...
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Kyiv (also Kiev) [a] is the capital and most populous city of Ukraine.It is in north-central Ukraine along the Dnieper River.As of 1 January 2022, its population was 2,952,301, [2] making Kyiv the seventh-most populous city in Europe. [11]
The Smith & Wesson Model 19 is a revolver produced by Smith & Wesson that was introduced in 1957 on its K-frame. The Model 19 is chambered for .357 Magnum.The K-frame is somewhat smaller and lighter than the original N-frame .357, usually known as the Smith & Wesson Model 27.
This article outlines the history of the COVID-19 pandemic in the United Kingdom (granular timelines can be found here).Though later reporting indicated that there may have been some cases dating from late 2019, [1] [2] COVID-19 was confirmed to be spreading in the UK by the end of January 2020. [3]
The intervals of 5-limit just intonation (prime limit, not odd limit) are ratios involving only the powers of 2, 3, and 5.The fundamental intervals are the superparticular ratios 2/1 (the octave), 3/2 (the perfect fifth) and 5/4 (the major third).