There is a very extensive and up-to-date bibliography on Statistics in the library of the Higher Polytechnic School (much of it in English). The notes of the subject will be available in digital format as well as the statements of the proposed cases. A sustainable use of resources must be made to prevent negative impact on the natural environment. For this reason, the delivery of the documentary works carried out in this matter: a) will be requested in virtual format and / or computer support, b) will be carried out in digital format without the need to print them. If it is necessary to make them on paper: a) plastics will not be used, b) double-sided printing will be made, c) recycled paper will be used, d) the printing of drafts will be avoided.