In recent years a number of calculators are available for doing statistical calculations over and above the usual addition, subtraction, multiplication and division. The fx-82 model of the CASIO range is one of the popular models with this capacity. We will briefly explain the use of this model for doing statistical calculation.
Each key on the fx-82 model has a double operation. For example, above the key for each number you will find symbols like . To use the keys for these statistical calculations you should first press the SHIFT key [in some older models it is the INV key] and then press the desired statistical key.