spelling correction in English

Spelling Correction|Exception|Rules|Summary

In a Nigerian hotel, among the english speaking people 40% are English & 60% Americans. The English & American spellings are "RIGOUR" & "RIGOR" respectively. An English speaking person in the hotel writes this word. A letter from this word is chosen at random & found to be a vowel. Find the probability that the writer is an Englishman.

A feature that automatically corrects common spelling errors is called

The feature in word automatically corrects certain spelling typing, capitalization, or grammar errors.