The app is designed to store (edited, deleted, renamed) a lot samples of random variables, to calculate their basic statistical characteristics as the: -average value; - standard deviation; - skewness and kurtosis; - variance and standard deviation; - determined histogram of sample.
Samples, results of processing and histogram can be saved in database (Sqlit). Tables with these data can be exported for printing for example, by means of Sqlit browser. Perform the function "Init DB"( initiate DB) from the menu of boot activity, when booting the application for first time With the implementation of this function is loaded and a list of some samples.