This dossier is a tool for students entering the new statistical software free software ( R ) . The program R has two modes: one based on orders ( R -Commander ) and the other using the programming language . This document uses the form of orders to be more similar to the SPSS program and facilitate students' adjustment to the new software. The structure of this dossier consists of four main chapters. Chapter 2 will enable the student to enter the software environment R and R -Commander . In Chapter 3 apply the tools offered by the software to work the concepts of univariate descriptive statistics . Chapter 4 will work Bivariate descriptive statistics . Finally in Chapter 5 shall apply the R -Commander tools for solving univariate statistical inference . In each of these chapters will find the practices so far have worked in a statistics course adapted to this new software R.n
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