Scrabble variants teams of 2, 3, or 4 race to play legal Scrabble words as quickly as possible. Scoring does not matter; all that matters is how quickly words are played. This can be a co-operative game where all players are simply trying to complete the game as fast as possible. A new variant on Scrabble introduced by Mattel on April 6, 2010. This game has the same rules and tiles as Scrabble, but the board is larger (21x21 vs. 15x15 in the original). With the larger board there are more premium squares, going up to quadruple letter and quadruple word scores.
P-value hypothesis testing) such as formula_9 the probability of the hypothesis given the data, or formula_10 the probability of the hypothesis being true, or formula_11 the probability of observing the given data. The "p"-value is defined as the probability, under the null hypothesis, here simply denoted by formula_4 (but is often denoted formula_13, as opposed to formula_14, which is sometimes used to represent the alternative hypothesis), of obtaining a result equal to or more extreme than what was actually observed. Depending on how it is looked at, the "more extreme than what was actually observed" can mean formula_15 (right-tail event) or