: Moments, moment generating functions, and conditional variance. Accessing the Book

Statistics is the science of collecting, analyzing, interpreting, and presenting data. It is a field that deals with the collection, analysis, interpretation, presentation, and organization of data. Statistics is used in various fields such as economics, biology, psychology, business, and many more.

: Focuses on making broader conclusions from data through sampling theory, hypothesis testing, and the analysis of variance (ANOVA). Regression and Correlation

You're looking for a write-up on an introduction to statistics and probability by Nurul Islam, along with a link to a free PDF download. Here's the information:

Supporting the author ensures that educational resources continue to be updated and published. How to Access the Book Legally