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WikiCards · Card list · Science cards · Confidence interval
Rare card · Science
Confidence interval, a Rare card
In frequentist inference, a confidence interval determines lower and upper bounds likely to contain the true value of an unknown statistical parameter, such as a population mean.
- Rarity
- Rare
- Domain
- Science
- ATK
- 71
- DEF
- 57
- Power
- 128
- Wikipedia reads a year
- 260,000
Power 128 (ATK + DEF): stronger than 65 % of WikiCards cards.
Confidence interval quiz: 3 questions
Three questions on the Confidence interval card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
A confidence interval is based on a pre-defined coverage ______, called confidence level, typically 95%.
Answer
probability. A confidence interval is based on a pre-defined coverage probability, called confidence level, typically 95%. From the Confidence interval article on Wikipedia.
Which of these Wikipedia articles is read the most in a year?
Answer
Confidence interval. Confidence interval 260,000 · Maria Gaetana Agnesi 21,000 · List of tallest buildings in Stockholm 5,000 · Lynden Archer 1,300 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.
- Rather than reporting a single point estimate, a confidence interval provides an interval, such as from 2 hours to 4 hours.
- A confidence interval is based on a pre-defined coverage probability, called confidence level, typically 95%.
- A 95% confidence level does not imply a 95% probability that the true parameter lies within a particular CI calculated from a sample.
Why it is Rare
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Confidence interval article was read about 260,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 71 and blocks with 57: each hit it takes is cut by 23 %.
How to get Confidence interval
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 Confidence interval in the power ranking, all domains together.
- BilateriaRare · Nature · ATK 70 DEF 58
- HornetRare · Nature · ATK 67 DEF 61
- MaleRare · Science · ATK 68 DEF 60
- CappuccinoRare · Society · ATK 70 DEF 58
- LeekRare · Nature · ATK 64 DEF 64
- Frederick William I of PrussiaRare · History · ATK 70 DEF 58
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Credits
Text : Wikipedia, Confidence interval (revision), CC BY-SA 4.0. Photo : FRuDIxAFLG, CC BY-SA 4.0, Wikimedia Commons.
