R Software is open source software, there are many good applications that need to be exploited.
Today, this software is interested by many people. So by studing and exploiting deeply applications
of R software, specially exploiting many application of illustrating chart. The article introdu ced how
to install the software with open source and designed a sequence of successive statements of the
software and formed a logical thinking sequence in teaching estimation and hypothesis testing in
Thai Nguyen university of medicine and pharmacy.