The inspected chapter masthead identifies Sampling Theory, Chapter 2, Simple Random Sampling, and credits Shalabh of IIT Kanpur. Credit applies to the inspected chapter, rather than inferring authorship of every resource in a course from the host. No publication date or edition established.
Cited passages: Sampling Theory, Chapter 2, PDF pp. 10–12: sample-variance and standard-error estimation; Sampling Theory, Chapter 2, PDF pp. 2, 6–9: variance normalizations, unbiasedness, covariance derivation and finite population correction; Sampling Theory, Chapter 2, Simple Random Sampling, PDF pp. 1–4: replacement conventions and ordered versus unordered sample probabilities.
Shalabh 2026-10-14
Identity and homepage: Shalabh's institutional homepage.
Figure 1.
Portrait of Shalabh
. External portrait of Shalabh embedded on his institutional homepage at the Indian Institute of Technology Kanpur; the photograph is hosted by that institution.