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Sum ← Sum + x. SumSq ← SumSq + x × x. Var = (SumSq − (Sum × Sum) / n) / (n − 1) This algorithm can easily be adapted to compute the variance of a finite population: simply divide by n instead of n − 1 on the last line. Because SumSq and (Sum×Sum)/n can be very similar numbers, cancellation can lead to the precision of the result to ...
Since a good rating can boost sales, these ratings are very important to sellers. The number of items shipped is usually an important factor in that rating, as is the star rating given by the person who placed the order (irrespective of who received the item, or whether the parcel that was sent to them even contained it).
The lead story by Silver explained that "FiveThirtyEight is a data journalism organization. ... We've expanded our staff from two full-time journalists to 20 and counting. Few of them will focus on politics exclusively; instead, our coverage will span five major subject areas – politics, economics, science, life and sports.
ResellerRatings is an online ratings site where consumers submit ratings and reviews of online retailers, and online retailers participate to respond to reviewers and to gather reviews from their customers post-purchase. As of July 11, 2017, the site had over 6.2 million user-submitted reviews for 202,000 stores. [citation needed]
Credit rating. A credit rating is an evaluation of the credit risk of a prospective debtor (an individual, a business, company or a government), predicting their ability to pay back the debt, and an implicit forecast of the likelihood of the debtor defaulting. [ 1] The credit rating represents an evaluation from a credit rating agency of the ...
The calculator is available in two formats—an online forum and a Microsoft Excel spreadsheet. [23] Both of these calculators are available for use on the official Health Star Rating website and is accessible to anyone. The Guide for Industry for the Health Star Rating Calculator outlines the steps required in evaluating a products score. [25]
Rating percentage index. The rating percentage index, commonly known as the RPI, is a quantity used to rank sports teams based upon a team's wins and losses and its strength of schedule. It is one of the sports rating systems by which NCAA basketball, baseball, softball, hockey, soccer, lacrosse, and volleyball teams are ranked.
The Q Score (popularly known as Q-Rating) is a measurement of the familiarity and appeal of a brand, celebrity, company, or entertainment product (e.g., television show) used in the United States. The more highly regarded the item or person is, the higher the Q Score among those who are aware of the subject.