Blue Book Score Ranges to Actual Scores?

<p>I've seen people posting that they got certain scores on tests from the blue book, but since it only provides a range of your score, how are people calculating their exact scores? Are they just taking the averages or is there some precise curve that tells you what you got? Like for Practice Test 1, if I got in the 2100-2350 range, what would be my exact score?</p>