WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Coefficient of determination
Rare card · Science
Coefficient of determination, a Rare card
In statistics, the coefficient of determination, denoted R2 or r2 and pronounced "R squared", is the proportion of the variation in the dependent variable that is predictable from the independent variable.
- Rarity
- Rare
- Domain
- Science
- ATK
- 75
- DEF
- 66
- Power
- 141
- Wikipedia reads a year
- 380,000
Power 141 (ATK + DEF): stronger than 75 % of WikiCards cards.
Coefficient of determination quiz: 3 questions
Three questions on the Coefficient of determination card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
There are several ______ of R2 that are only sometimes equivalent.
Answer
definitions. There are several definitions of R2 that are only sometimes equivalent. From the Coefficient of determination article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Casino. Casino 530,000 · Coefficient of determination 380,000 · Sp7 transcription factor 1,700 · Lucie Odier 420 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is a statistic used in the context of statistical models whose main purpose is either the prediction of future outcomes or the testing of hypotheses, on the basis of other related information.
- It provides a measure of how well observed outcomes are replicated by the model, based on the proportion of total variation of outcomes explained by the model.
- There are several definitions of R2 that are only sometimes equivalent.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Coefficient of determination article was read about 380,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 75 and blocks with 66: each hit it takes is cut by 26 %.
How to get Coefficient of determination
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Coefficient of determination in the power ranking, all domains together.
- CasinoEpic · Science · ATK 76 DEF 65
- OkraEpic · Nature · ATK 68 DEF 73
- Execution of Saddam HusseinRare · History · ATK 73 DEF 68
- Flying DutchmanRare · Nature · ATK 72 DEF 69
- Ballistic missileRare · Science · ATK 71 DEF 70
- La traviataRare · Arts · ATK 71 DEF 70
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Coefficient of determination (revision), CC BY-SA 4.0. Photo : Debenben, CC BY-SA 4.0, Wikimedia Commons.
