1. A computer-implemented method comprising: receiving input indicative of a user striking one or more keys in a keyboard having multiple keys; predetermining a probability distribution, wherein the probability distribution indicates, for each pair of keys in the keyboard comprised of at least a first key and a second key, a probability that a user unintentionally strikes the first key in the pair when the user intends to strike the second key in the pair; wherein the probability distribution includes a probability that the user will miss the keyboard entirely when a keystrike was intended; and; wherein the keyboard is a touchscreen keyboard and in response to receiving input indicative of the user striking one or more keys in the keyboard, using a processor and the predetermined probability distribution to select at least one candidate word.