In the world of mathematical statistics, few textbooks command as much respect—or as much frustration—as An Introduction to Probability and Statistical Inference by Vijay K. Rohatgi. For decades, it has been the bible for graduate students, research scholars, and aspiring data scientists. However, for all its brilliance, accessing a clean, readable, and complete digital version has been a notorious challenge.
If you are an undergraduate taking a first statistics course, Rohatgi will crush your spirit. It is too advanced. But if you are a graduate student in Mathematics, Statistics, Biostatistics, or Econometrics, the is arguably the most valuable $0-to-$20 investment (depending on how you source it) you can make. vk rohatgi statistical inference pdf repack