Ross, Sheldon. A First Course in Probability / Sheldon Ross ; Contributions by Sudheesh Kumar Kattumannil. - 9th ed. - New York : Pearson, c2019 [Impression 2021]. - xii, 468 p. ; 25 cm Includes index ISBN: 9789353065607 0024038504 Subjects--Topical Terms: ProbabilitiesMathematical statistics Dewey Class. No.: 519.2 / ROF 2019