or Statistical Learning involves the learning of regular patterns in a particular environment without actively intending to do so.

"Language learning is a good example of statistical learning because people spontaneously and without conscious effort use the regularities that language contains to produce their own utterances (Bybee and McClelland, 2005)."

This would mean that language learners would learn certain language regularties by simply observing others talk. For Example. learning the different forms of past tense verbs.

This type of learning is also used when learning to group items into catagories by simply observing.