E-lessons cover the following topics:

Explanations about what is statistics and what it is used for, how statistical information is obtained and presented, etc. are provided.
Explanations about how to conduct a simple statistical survey, collect and manage data, as well as how to present results are provided.
Information about more complex statistical surveys, data collection from documents, complex diagrams is provided.
Information about variational series, as well as about how to calculate an average, determine a mode and a median is provided.