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Class notes MATH 3450 Principles of Biostatistics Chapter 3

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This educational text serves as a comprehensive guide to understanding discrete random variables and their application through the binomial distribution. It begins by distinguishing between discrete and continuous variables, then introduces the probability mass function (PMF) as the foundational tool for mapping specific outcomes to their likelihoods. The source emphasizes practical computation, teaching students how to calculate the expected value (mean), variance, and standard deviation using manual formulas, TI-84 calculators, and R programming. Finally, the text explores binomial experiments, detailing how to determine the probability of successes across multiple trials and identifying outliers when observed counts fall more than two standard deviations from the mean.

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Uploaded on
December 30, 2025
Number of pages
24
Written in
2025/2026
Type
Class notes
Professor(s)
Chowdhury
Contains
All classes

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