Note citations are based on reference standards however formatting rules can vary widely between applications and fields of interest or study the specific requirements or preferences of your reviewing publisher classroom teacher institution or organization should be applied. Note citations are based on reference standards however formatting rules can vary widely between applications and fields of interest or study the specific requirements or preferences of your reviewing publisher classroom teacher institution or organization should be applied. Formulae and tables while preparing for your exams we encourage you to work through past exam papers with the formulae and tables book the book gives you formulae for selected mathematical and statistical methods calculus time series and economic models and many other topics. The t score formula explained definition video step by step example t score conversion in psychometrics many people prefer t scores because the lack of negative numbers means they are easier to work with and there is a larger range so decimals are almost eliminated this table shows z scores and their equivalent t scores. Advanced subsidiary and advanced gce mathematics and further mathematics mathematical formulae and statistical tables first certification from 2018 advanced subsidiary gce in mathematics 8ma0 the following statistical tables are required for a level mathematics