After a few minutes of searching, Raj stumbled upon a website that seemed promising. It was a repository of free e-books and textbooks, and it had a section dedicated to statistics and mathematics. He clicked on the link to the PDF, and it began to download.

As he scrolled through his notes, he realized that he needed to get a better grasp on the fundamentals of mathematical statistics. He had heard that a textbook by P.R. Vittal was a great resource, but he didn't have a physical copy. So, he decided to search online for a digital version.

Years later, Raj would look back on his journey and smile. He had learned a valuable lesson about perseverance, and about the importance of online resources. And he had also learned a thing or two about mathematical statistics, thanks to P.R. Vittal's textbook.

But, just as the download was finishing up, Raj's internet connection suddenly dropped. He was left staring at a frustrating error message on his screen. He tried to restart the download, but it wouldn't budge.

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